JP2010121869A - Indoor unit and air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To inform abnormality while giving no anxiety to general users. <P>SOLUTION: The air conditioner determines whether it executes user failure diagnosis or executes service person failure diagnosis according to a kind of a failure diagnosis demand signal transmitted from a remote controller (step S23). When it executes the user failure diagnosis (step S23:Yes), it determines whether the abnormality is occurring at present (step S24), and transmits only an abnormality cord related to the abnormality occurring at present to the remote controller (step S26). On the other hand, when it executes the service person failure diagnosis (step S23:No), it transmits an abnormality cord related to the abnormality occurring at present, an abnormality cord related to the abnormality which occurred in the past, and an abnormality cord related to the abnormality the abnormality level of which is lower than levels of these abnormalities, to the remote controller (step S28). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an indoor unit and an air conditioner having a failure diagnosis function for specifying a failure factor.

Conventionally, for service personnel who repair and check air conditioners, etc., there are air conditioners that output currently occurring abnormalities or past abnormalities in response to failure diagnosis request signals transmitted from the remote control. Known (for example, see Patent Documents 1 and 2). Such failure diagnosis for identifying the cause of failure is an operation performed by a service person who is an expert in repair and inspection, and the operation method is generally not disclosed to general users. It was.
JP-A-11-248286 JP 2002-89944 A

  In Patent Documents 1 and 2, when an abnormality is detected by executing a failure diagnosis, the user is notified that an abnormality has been found by a method such as blinking a lamp or LED. For this reason, the general user only knows the fact that an abnormality has occurred, and the content of the abnormality is not known to the general user.

  Therefore, an air conditioner that informs the general user of the content of the abnormality is proposed, but for the general user, all abnormalities (such as abnormalities that have occurred in the past and troubles in the operation of the air conditioner are hindered) as well as the service person. It is not appropriate to report an anomaly such as an abnormal level with a low level of abnormalities).

  Accordingly, the present invention has been made to solve the above-described problems, and includes an indoor unit capable of informing an abnormality so as not to give anxiety to a general user, and the indoor unit. An object is to provide an air conditioner.

  An indoor unit according to a first aspect of the present invention is an indoor unit that outputs failure diagnosis result information in response to a failure diagnosis request signal transmitted from a remote controller, and can receive a plurality of types of failure diagnosis request signals transmitted from the remote controller. And receiving means capable of outputting different failure diagnosis result information according to the type of failure diagnosis request signal received by the receiving means.

  In this indoor unit, different failure diagnosis result information can be output according to the type of failure diagnosis request signal. Therefore, for example, the content of the failure diagnosis result information output based on the failure diagnosis request related to the operation of the general user is limited from the content of the failure diagnosis result information output based on the failure diagnosis request related to the operation of the service person. It is possible to perform control. As a result, it is possible to notify the general user of an abnormality that does not cause anxiety, and to notify the service person of detailed information such as past abnormality in addition to the above abnormality. Can do.

  The indoor unit according to the second aspect of the present invention is the indoor unit according to the first aspect of the present invention, wherein the plurality of types of failure diagnosis request signals include only the contents of the abnormality occurring when the failure diagnosis request signal is received by the receiving means. A first failure diagnosis request signal to request is included.

  In this indoor unit, it is possible to notify only the details of the abnormality that is currently occurring when the receiving means receives the failure diagnosis request signal. That is, if the general user transmits the first failure diagnosis request signal, only the details of the abnormality currently occurring can be notified to the general user.

  An indoor unit according to a third aspect of the invention further includes an abnormality notifying means for notifying that an abnormality has occurred in the indoor unit in the indoor unit according to the second aspect of the invention. Then, when the first failure diagnosis request signal is received by the receiving means, the output means outputs the failure diagnosis result information only when the abnormality notifying means notifies the abnormality.

  In this indoor unit, by providing abnormality notification means, it is possible to notify a general user or a serviceman that an abnormality has occurred in the indoor unit. Thus, the general user can know only the currently occurring abnormality that occurs when the receiving unit receives the first failure diagnosis request signal by transmitting the first failure diagnosis request signal. it can. That is, only the currently occurring abnormality can be notified to the general user who has recognized the abnormality of the indoor unit by the notification of the abnormality notification means.

  An indoor unit according to a fourth aspect of the present invention is the indoor unit according to any one of the first to third aspects, wherein the failure diagnosis request signal is generated when the failure diagnosis request signal is received by the receiving means. And a second failure diagnosis request signal for requesting an abnormality content that occurred before receiving the failure diagnosis request signal.

  In this indoor unit, not only the currently occurring abnormality content that occurs when the receiving means receives the failure diagnosis request signal, but also the abnormality content that occurred before the receiving means received the failure diagnosis request signal is notified. be able to. In other words, if the service person sends the second failure diagnosis request signal, the service person can be notified of the detailed abnormality contents such as the abnormality contents currently occurring and the abnormality contents that have occurred in the past. .

  An indoor unit according to a fifth invention is the indoor unit according to any one of the first to fourth inventions, wherein the remote control and the indoor unit are capable of bidirectional communication, and the output means is a diagnosis result notification provided in the remote control. Fault diagnosis result information is output to the means.

  Thereby, the general user and the service person can obtain the failure diagnosis result information by the diagnosis result notifying means provided on the remote control at hand.

  An indoor unit according to a sixth invention is the indoor unit according to any one of the first to fourth inventions, wherein the remote controller is capable of one-way communication with the indoor unit, and the output means is provided in the indoor unit. Fault diagnosis result information is output to the diagnosis result notifying means.

  Thus, even if a remote controller capable of one-way communication with the indoor unit is used, failure diagnosis result information can be obtained by the diagnostic result notifying means provided in the indoor unit.

  An indoor unit according to a seventh aspect is the indoor unit according to the sixth aspect, wherein the failure diagnosis request signal includes an abnormality code corresponding to a predetermined abnormality content, and the abnormality content related to the abnormality code and the failure diagnosis When the abnormality content occurring when the request signal is received matches, the output means outputs failure diagnosis result information to the diagnosis result notifying means.

  In this indoor unit, if an abnormality code is included in the failure diagnosis request signal, it is only necessary to determine whether the abnormality content currently occurring in the indoor unit and the abnormality content related to the abnormality code are identical or inconsistent. It is possible to notify the details of the abnormality currently occurring to the man.

  An indoor unit according to an eighth aspect is the indoor unit according to any one of the first to seventh aspects, wherein a plurality of types of failure diagnosis request signals are transmitted when different remote control operations are performed.

  In this indoor unit, the type of the failure diagnosis request signal to be transmitted varies depending on the operation method of the remote controller, so that the failure diagnosis performed by a general user and the failure diagnosis performed by a service person can be separated.

  An indoor unit according to a ninth aspect of the present invention is the indoor unit according to any one of the first to seventh aspects of the invention, wherein the remote controller is provided with designation means for designating the type of failure diagnosis request signal to be transmitted. The failure diagnosis request signal of the type specified by the specifying means is transmitted.

  In this indoor unit, by changing the settings of the remote controller used by the general user and the remote controller used by the service person, it is possible to reliably prevent the general user from performing the failure diagnosis performed by the service person. .

  An air conditioner according to a tenth invention includes the indoor unit according to any one of the first to ninth inventions, and an outdoor unit that is communicably connected to the indoor unit.

  In this air conditioner, the indoor unit and the outdoor unit are communicably connected, so that not only the indoor unit but also the outdoor unit can be diagnosed.

  As described above, according to the present invention, the following effects can be obtained.

  In the first invention, different failure diagnosis result information can be output according to the type of the failure diagnosis request signal. Therefore, for example, the content of the failure diagnosis result information output based on the failure diagnosis request related to the operation of the general user is limited from the content of the failure diagnosis result information output based on the failure diagnosis request related to the operation of the service person. It is possible to perform control. As a result, it is possible to notify the general user of an abnormality that does not cause anxiety, and to notify the service person of detailed information such as past abnormality in addition to the above abnormality. Can do.

  Further, in the second invention, it is possible to notify only the content of the abnormality that is currently occurring that occurs when the receiving means receives the failure diagnosis request signal. That is, if the general user transmits the first failure diagnosis request signal, only the details of the abnormality currently occurring can be notified to the general user.

  Moreover, in 3rd invention, it can alert | report that abnormality has generate | occur | produced in the indoor unit with respect to a general user or a service person by providing an abnormality notification means. Thus, the general user can know only the currently occurring abnormality that occurs when the receiving unit receives the first failure diagnosis request signal by transmitting the first failure diagnosis request signal. it can. That is, only the currently occurring abnormality can be notified to the general user who has recognized the abnormality of the indoor unit by the notification of the abnormality notification means.

  According to the fourth aspect of the invention, not only the abnormal content currently occurring when the receiving means receives the failure diagnosis request signal, but also the abnormal content that occurred before the receiving means received the failure diagnosis request signal. Can be notified. In other words, if the service person sends the second failure diagnosis request signal, the service person can be notified of the detailed abnormality contents such as the abnormality contents currently occurring and the abnormality contents that have occurred in the past. .

  In the fifth invention, the general user and the service person can obtain the failure diagnosis result information by the diagnosis result notifying means provided on the remote control at hand.

  In the sixth aspect of the invention, the failure diagnosis result information can be obtained by the diagnosis result notifying means provided in the indoor unit even if a remote controller capable of one-way communication with the indoor unit is used.

  In addition, in the seventh invention, if the failure diagnosis request signal includes an abnormal code, it is only necessary to determine whether the abnormality content currently occurring in the indoor unit matches the abnormality content related to the abnormality code. The user and the service person can be notified of the abnormal content currently occurring.

  In the eighth invention, the type of the failure diagnosis request signal to be transmitted changes depending on the operation method of the remote controller, so that the failure diagnosis performed by the general user and the failure diagnosis performed by the service person can be separated.

  In the ninth aspect of the present invention, it is possible to reliably prevent a general user from performing a failure diagnosis performed by a serviceman by changing the settings of the remote control used by the general user and the remote control used by the serviceman. be able to.

  In the tenth aspect of the invention, the indoor unit and the outdoor unit are communicably connected, so that not only the indoor unit but also the outdoor unit can be diagnosed.

  Hereinafter, an embodiment of an air conditioner according to the present invention will be described based on the drawings.

(First embodiment)
FIG. 1 is a perspective view showing an overall configuration of an air conditioner according to a first embodiment of the present invention. FIG. 2 is a block diagram of the air conditioner shown in FIG. 3 and 4 are front views showing a remote controller of the air conditioner shown in FIG. FIG. 5 is a diagram illustrating an operation method and a display screen for executing user failure diagnosis, and FIG. 6 is a diagram illustrating an operation method and a display screen for executing serviceman failure diagnosis. Hereinafter, with reference to FIGS. 1-6, the air conditioner 1 which concerns on 1st Embodiment of this invention is demonstrated in detail.

  As shown in FIG. 1, the air conditioner 1 includes an indoor unit 1a installed on an indoor wall surface, an outdoor unit 1b installed outdoors, and a remote controller 1c that can communicate with the indoor unit 1a. It has. An operation LED 10 that displays whether or not the indoor unit 1a is operating and an infrared transmission / reception unit 11 that transmits and receives signals to and from the remote controller 1c are provided on the front surface of the indoor unit 1a. As shown in FIG. 2, the operation LED 10 and the infrared transmission / reception unit 11 are connected to a control unit 12 that controls the operation of each unit of the indoor unit 1 a. The control unit 12 is connected to a control unit 22 that controls the operation of the compressor 20 and the outdoor fan 21 provided in the outdoor unit 1b.

  The air conditioner 1 of the present embodiment has a failure diagnosis function, and can identify a failure factor in the indoor unit 1a or the outdoor unit 1b. In this failure diagnosis, it is possible to detect an abnormality that requires the air conditioner 1 to return to the power source or an abnormality with a low abnormality level that does not cause a problem even if the operation is continued. There are two types of failure diagnosis in the air conditioner 1 of the present embodiment: “user failure diagnosis” and “serviceman failure diagnosis”. The contents of failure diagnosis result information output in “user failure diagnosis” are as follows: In addition, there is a restriction compared to the content of the failure diagnosis result information output in “Serviceman Failure Diagnosis”. Details of the failure diagnosis will be described later.

  In the present embodiment, the abnormality detected by the above-described failure diagnosis is stored in the storage unit 12a provided in the control unit 12 of the indoor unit 1a or the storage unit 22a provided in the control unit 22 of the outdoor unit 1b. In these storage units 12a and 22a, an abnormality history in which abnormalities that have occurred in the past are sequentially added is stored.

  The operation LED 10 is turned on when the air conditioner 1 is performing an air conditioning operation or the like, and is turned off when the air conditioner 1 is not performing an air conditioning operation or the like. In this embodiment, when an abnormality occurs in the air conditioner 1, the operation LED 10 blinks. Therefore, a general user or a service person can recognize that an abnormality is currently occurring by seeing the operation LED 10 blinking.

  The infrared transmission / reception unit 11 is capable of bidirectional communication with the infrared transmission / reception unit 32 of the remote controller 1c. In this embodiment, the infrared transmitter / receiver 11 receives the failure diagnosis request signal transmitted from the remote controller 1c, and transmits failure diagnosis result information to the infrared transmitter / receiver 32 of the remote controller 1c.

  The remote controller 1c transmits various commands related to the control of the indoor unit 1a and the outdoor unit 1b according to the operation of the user, and as shown in FIGS. 3 and 4, a display unit 30 that displays the indoor temperature, the set temperature, etc. , An operation unit 31 in which various buttons are arranged, and an infrared transmission / reception unit 32 (see FIG. 2). As shown in FIG. 2, the display unit 30, the operation unit 31, and the infrared transmission / reception unit 32 are connected to the control unit 33 of the remote controller 1c.

  As shown in FIGS. 5 and 6, when “user failure diagnosis” or “serviceman failure diagnosis” is executed on the display unit 30, an abnormal code (“A1” in the figure) related to the failure diagnosis result information is displayed. Or a normal code (for example, “00”) is displayed. This abnormality code corresponds to the abnormality content that occurs in the air conditioner 1. Specifically, the abnormality code “A1” related to the 12V power supply abnormality, the abnormality code “E6” related to the abnormality of the compressor 20, the outdoor There are an abnormality code “E7” relating to the abnormality of the fan 21 and an abnormality code “U4” relating to an abnormality in transmission between the indoor unit 1a and the outdoor unit 1b.

  The operation unit 31 includes an operation / stop button 31a, a temperature adjustment button 31b, a humidity adjustment button 31c, and the like (see FIG. 3) arranged outside the openable / closable lid 34, and the inside of the lid 34. A menu button 31d, a determination button 31e, an end / cancel button 31f, a selection button 31g, and the like (see FIG. 4).

  The infrared transmission / reception unit 32 is capable of bidirectional communication with the infrared transmission / reception unit 11 of the indoor unit 1a, and transmits a signal for controlling various operations of the air conditioner 1 to the infrared transmission / reception unit 11 of the indoor unit 1a. And a function of receiving a signal (for example, a signal related to room temperature or a signal related to humidity) transmitted from the infrared transmission / reception unit 11 of the indoor unit 1a.

  In this embodiment, as shown in FIG. 5, when the end / cancel button 31f is pressed and held, a signal related to user failure diagnosis (hereinafter referred to as a first failure diagnosis request signal) is transmitted from the remote controller 1c to the room. Is transmitted to the machine 1a, and "user failure diagnosis" is executed. In the present embodiment, as shown in FIG. 6, on the selection screen displayed by long pressing the menu button 31d, the cursor is moved to “failure diagnosis” by pressing the selection button 31g, and the decision button 31e is pressed. By selecting “Fault Diagnosis” in the above, a signal related to serviceman fault diagnosis (hereinafter referred to as a second fault diagnosis request signal) is transmitted from the remote controller 1c to the indoor unit 1a, and “Serviceman Fault Diagnosis” Is executed. Then, when “user failure diagnosis” or “serviceman failure diagnosis” is executed, an abnormal code (“A1” in the figure) and a normal code (for example, “00”) related to the failure diagnosis result information are displayed on the remote controller 1c. It is displayed on the display unit 30.

[User fault diagnosis]
The user failure diagnosis is a failure diagnosis performed by a general user, and the content of the failure diagnosis result information is limited compared to the content of failure diagnosis result information in a serviceman failure diagnosis described later. That is, in this user failure diagnosis, only the abnormality that is currently occurring and the abnormality level is high is output as the failure diagnosis result information. In this user failure diagnosis, an abnormal code (for example, [A1] (see FIG. 5)) related to failure diagnosis result information transmitted from the indoor unit 1a is displayed on the display unit 30 of the remote controller 1c, so that a general user can see it. An abnormal code that is a cause of failure is notified.

[Serviceman fault diagnosis]
The serviceman failure diagnosis is a failure diagnosis performed by a serviceman who repairs or inspects the air conditioner 1. The content of the failure diagnosis result information is an abnormality (currently occurring) that is output in the above-described user failure diagnosis. Not only abnormalities and abnormalities with high abnormal levels), but also abnormalities with low abnormal levels and abnormalities that occurred in the past are output as failure diagnosis result information. That is, the contents of the abnormality history stored in the storage units 12a and 22a are output as failure diagnosis result information. In this serviceman failure diagnosis, an abnormal code (for example, [A1] (see FIG. 6)) related to failure diagnosis result information transmitted from the indoor unit 1a is displayed on the display unit 30 of the remote controller 1c, whereby the serviceman An abnormal code that is a cause of failure is notified. Therefore, even if there is no abnormality that is currently occurring, if there is an abnormality that has occurred in the past (for example, abnormality code: A5), in this serviceman failure diagnosis, the abnormality code is displayed on the display unit 30 of the remote controller 1c. Although (A5) is displayed, in the above-described user failure diagnosis, the abnormality code (A5) is not displayed on the display unit 30 of the remote controller 1c.

  FIG. 7 is a flowchart of user failure diagnosis and serviceman failure diagnosis. Next, user failure diagnosis and serviceman failure diagnosis according to the first embodiment will be described in detail with reference to FIGS.

  First, when a failure diagnosis request signal is transmitted by an operation of the remote control 1c of a general user or service person (step S11), it is determined whether or not the failure diagnosis request signal is received in the indoor unit 1a (step S11). S21). When the failure diagnosis request signal is transmitted in the above-described step S11, as shown in FIG. 5, the first failure diagnosis request signal is transmitted by pressing and holding the end / cancel button 31f, and FIG. In some cases, the second failure diagnosis request signal is transmitted by long pressing the menu button 31d.

  If the indoor unit 1a determines that a failure diagnosis request signal (first or second failure diagnosis request signal) has been received (step S21: Yes), whether the signal is a signal transmitted from the bidirectional remote controller. It is determined whether or not (step S22). Since the remote controller 1c according to the first embodiment is a remote controller capable of two-way communication with the indoor unit 1a (step S22: Yes), it is determined whether to execute user failure diagnosis or serviceman failure diagnosis (step S22). S23). Specifically, whether the failure diagnosis request signal received in step S21 is a user failure diagnosis request signal (first failure diagnosis request signal) or a serviceman failure diagnosis request signal (second failure diagnosis request signal). Judge whether or not.

  If the failure diagnosis request signal is a user failure diagnosis request signal (first failure diagnosis request signal) (step S23: Yes), it is determined whether or not an abnormality is currently occurring (step S24). As shown in FIG. 1, since the operation LED 10 provided on the front surface of the indoor unit 1a is blinking as shown in FIG. 1, in this step S24, it is determined whether or not the operation LED 10 is blinking. It can be said that it is judging.

  If an abnormality is present (when the operation LED 10 is blinking) (step S24: Yes), the code transmitted to the remote controller 1c is set as an abnormality code related to the abnormality currently occurring (step S25). ), The abnormal code is transmitted to the remote controller 1c (step S26). On the other hand, if no abnormality currently occurs (when the operation LED 10 is not blinking) (step S24: No), the code transmitted to the remote controller 1c is set as a normal code indicating "no abnormality" ( In step S27), the normal code is transmitted to the remote controller 1c (step S26).

  On the other hand, when the failure diagnosis request signal is a serviceman failure diagnosis request signal (second failure diagnosis request signal) (step S23: No), a code to be transmitted to the remote controller 1c is displayed as an abnormality related to the abnormality currently occurring. The remote controller 1c as a code, an abnormality code related to an abnormality that has occurred in the past, and an abnormality code (all abnormality codes related to an abnormality history stored in the storage units 12a and 22a) relating to an abnormality whose abnormality level is lower than these abnormalities (Step S28). When no abnormality has occurred at present and in the past, a normal code indicating “no abnormality” is transmitted to the remote controller 1c.

  On the remote controller 1c side, after transmitting a failure diagnosis request signal (step S11), it is determined whether or not an abnormal code has been received (step S12). If an abnormal code has been received (step S12: Yes), An abnormal code is displayed on the display unit 30 of the remote controller 1c (step S13). In this way, user failure diagnosis and serviceman failure diagnosis are executed.

[Features of the air conditioner of this embodiment]
The air conditioner 1 of the present embodiment has the following characteristics.

  In the air conditioner 1 of the present embodiment, the content of the failure diagnosis result information output based on the failure diagnosis request related to the operation of the general user is used as the failure diagnosis output based on the failure diagnosis request related to the operation of the service person. By restricting from the content of the result information, it is possible to notify the general user of the abnormality that does not cause anxiety, and to the service person, in addition to the above abnormality, the past abnormality, etc. Detailed information can be notified.

  Moreover, in the air conditioner 1 of this embodiment, when the failure diagnosis request signal transmitted from the remote controller 1c is the first failure diagnosis request signal, it is possible to notify only the details of the abnormality that is currently occurring. That is, if the general user transmits the first failure diagnosis request signal, only the details of the abnormality currently occurring can be notified to the general user.

  Moreover, in the air conditioner 1 of this embodiment, it can alert | report that the abnormality has generate | occur | produced in the indoor unit 1a with respect to a general user or a serviceman by providing the operation LED10 which blinks when abnormality occurs. Thereby, the general user can know only the abnormality currently occurring by transmitting the first failure diagnosis request signal. That is, it is possible to notify only the currently occurring abnormality to the general user who has recognized the abnormality of the indoor unit 1a by the blinking of the operation LED 10.

  Further, in the air conditioner 1 of the present embodiment, when the failure diagnosis request signal transmitted from the remote controller 1c is the second failure diagnosis request signal, it has occurred in the past as well as the abnormal content currently occurring. Abnormal content can be notified. That is, if the service person sends the second failure diagnosis request signal, the details of the abnormality contents currently occurring, the abnormality contents that have occurred in the past, and the abnormality contents having a low abnormality level are given to the service person. An abnormal content can be notified.

  Moreover, in the air conditioner 1 of this embodiment, a general user and a service person can obtain failure diagnosis result information (abnormal code) by a display unit provided on the remote controller 1c at hand.

  Further, in the air conditioner 1 of the present embodiment, since the failure diagnosis request signal includes an abnormality code, the abnormality content currently occurring in the indoor unit 1a and the abnormality content related to the abnormality code are matched or mismatched. Only by making a determination, it is possible to notify the general user and the service person of the content of the abnormality currently occurring.

  Moreover, in the air conditioner 1 of this embodiment, since the indoor unit 1a and the outdoor unit 1b are connected so that communication is possible, failure diagnosis of not only the indoor unit 1a but the outdoor unit 1b can also be performed.

(Second Embodiment)
FIG. 8 is a block diagram of an air conditioner according to the second embodiment of the present invention. FIG. 9 is a diagram illustrating an operation method for executing user fault diagnosis and a notification method of fault diagnosis result information, and FIG. 10 is an operation method for executing serviceman fault diagnosis and fault diagnosis result information. It is the figure which showed the alerting | reporting method. Hereinafter, with reference to FIGS. 8-10, the air conditioner which concerns on 2nd Embodiment of this invention is demonstrated in detail. In the second embodiment, unlike the first embodiment in which the failure diagnosis result information is notified by displaying the abnormal code on the display unit 30 of the remote controller 1c, the failure diagnosis result information is output by voice from the speaker of the remote controller 201c. The air conditioner 201 which performs is demonstrated. In the air conditioner 201 of the second embodiment, the configuration other than the remote controller 201c is the same as that of the air conditioner 1 of the first embodiment described above, and thus the description thereof is omitted as appropriate.

  As shown in FIG. 9, the remote controller 201 c includes a display unit 230 that displays room temperature, set temperature, and the like, an operation unit 231 on which various buttons are arranged, an infrared transmission / reception unit 232, and a speaker 234. The display unit 230, the operation unit 231, the infrared transmission / reception unit 232, and the speaker 234 are connected to the control unit 233 of the remote controller 201c.

  In the present embodiment, as shown in FIG. 9, by pressing and holding the end / cancel button 231f, a signal related to user failure diagnosis (hereinafter referred to as a first failure diagnosis request signal) is sent from the remote controller 201c to the indoor unit 1a. The “user failure diagnosis” is executed. In the present embodiment, as shown in FIG. 10, on the selection screen displayed by long pressing the menu button 231d, the cursor is moved to “Failure diagnosis” by pressing the selection button 231g, and the decision button 231e is pressed. By selecting “Fault Diagnosis” in the above, a signal related to serviceman fault diagnosis (hereinafter referred to as a second fault diagnosis request signal) is transmitted from the remote controller 201c to the indoor unit 1a, and “Serviceman Fault Diagnosis” is transmitted. Is executed. When “user failure diagnosis” or “serviceman failure diagnosis” is executed, an abnormal code (“A1” in the figure) and a normal code (for example, “00”) related to the failure diagnosis result information are output from the speaker 234. Output as audio.

[User fault diagnosis]
The user failure diagnosis is a failure diagnosis performed by a general user, and the content of the failure diagnosis result information is limited compared to the content of failure diagnosis result information in a serviceman failure diagnosis described later. That is, in this user failure diagnosis, only the abnormality that is currently occurring and the abnormality level is high is output as the failure diagnosis result information. In this user failure diagnosis, an abnormal code (for example, “A1” (see FIG. 9)) related to failure diagnosis result information transmitted from the indoor unit is output by voice from the speaker 234 of the remote controller 201c, so that the general user is notified. An abnormal code that is a cause of failure is notified.

[Serviceman fault diagnosis]
The serviceman failure diagnosis is a failure diagnosis performed by a serviceman who repairs or inspects the air conditioner. The content of the failure diagnosis result information is an abnormality output in the above-described user failure diagnosis (an abnormality currently occurring). In addition, an abnormality having a high abnormality level), an abnormality having a low abnormality level, or an abnormality that has occurred in the past are output as failure diagnosis result information. In this serviceman failure diagnosis, an abnormal code (for example, “A1” (see FIG. 10)) related to failure diagnosis result information transmitted from the indoor unit is output by voice from the speaker 234 of the remote controller 201c, so that the serviceman An abnormal code that is a cause of failure is notified. Therefore, even if there is no abnormality that is currently occurring, if there is an abnormality that has occurred in the past (for example, abnormality code: A5), in this serviceman failure diagnosis, the abnormality code ( A5) is output, but in the above-described user failure diagnosis, the abnormal code (A5) is not output from the speaker 234 of the remote controller 201c.

(Third embodiment)
FIG. 11 is a block diagram of an air conditioner according to a third embodiment of the present invention. FIG. 12 is a front view showing a remote controller of the air conditioner shown in FIG. FIG. 13 is a diagram illustrating an operation method for executing user failure diagnosis and a notification method for failure diagnosis result information, and FIG. 14 is an operation method for executing serviceman failure diagnosis and failure diagnosis result information. It is the figure which showed the alerting | reporting method. Hereinafter, with reference to FIGS. 11-14, the air conditioner which concerns on 3rd Embodiment of this invention is demonstrated in detail. In the third embodiment, unlike the first and second embodiments using a bidirectional remote controller, an air conditioner including a unidirectional remote controller will be described. In the third embodiment, the description of the same parts as those in the first and second embodiments will be omitted as appropriate.

  As shown in FIG. 11, the air conditioner 301 includes an indoor unit 301a, an outdoor unit 301b, and a remote control 301c capable of infrared communication with the indoor unit 301a. And in front of the indoor unit 301a, the operation | movement LED310 and the infrared rays receiving part 311 which receives the signal transmitted from the remote control 301c are provided. Moreover, the indoor unit 301a of this embodiment is provided with a speaker 313 that outputs a buzzer sound or the like indicating that a signal transmitted from the remote controller 301c has been received. The operation LED 310, the infrared receiving unit 311 and the speaker 313 are connected to a control unit 312 that controls the operation of each unit of the indoor unit 301a. The control unit 312 is connected to a control unit 322 provided in the outdoor unit 301b.

  As shown in FIGS. 11 and 12, the remote control 301 c includes a display unit 330 that displays room temperature, set temperature, and the like, an operation unit 331 on which various buttons are arranged, and an infrared transmission unit 332. The display unit 330, the operation unit 331, and the infrared transmission unit 332 are connected to the control unit 333 of the remote controller 301c.

  The display unit 330 is transmitted to the indoor unit 301a together with the failure diagnosis request signal at the time of “user failure diagnosis” and “serviceman failure diagnosis”, as shown in FIGS. 13 and 14, in addition to the room temperature and the set temperature. A reference abnormal code ("A5" in the figure) and a normal code (for example, "00") are displayed.

  The operation unit 331 includes an operation / stop button 331a for instructing operation and stop of the air conditioner 301, an operation switching button 331b for switching between cooling and heating, and a set temperature for changing the set temperature. A change button 331c, a cancel button 331d, and the like are provided.

  The infrared transmission unit 332 can perform one-way communication with the infrared reception unit 311 of the indoor unit 301a described above, and transmits signals for controlling various operations of the air conditioner 301 to the infrared reception unit 311 of the indoor unit 301a. It has a function to do.

  And in this embodiment, as shown in FIG. 13, the screen which selects the abnormality code for a reference transmitted to the indoor unit 301a is displayed by long-pressing the cancellation button 311d. Here, the reference abnormality code selected by pressing the set temperature change button 331c is transmitted to the indoor unit 301a together with a signal relating to serviceman failure diagnosis (hereinafter referred to as a first failure diagnosis request signal), “User failure diagnosis” is executed. In the present embodiment, as shown in FIG. 14, a screen for selecting a reference abnormality code to be transmitted to the indoor unit 301a is displayed by simultaneously pressing the set temperature change button 331c and the operation switching button 331b. The Here, the reference abnormality code selected by pressing the set temperature change button 331c is transmitted to the indoor unit 301a together with a signal relating to user failure diagnosis (hereinafter referred to as a second failure diagnosis request signal), and “ "Serviceman fault diagnosis" is executed. When “user failure diagnosis” or “serviceman failure diagnosis” is executed, failure diagnosis result information is output as a buzzer sound from the speaker 313 of the indoor unit 301a.

[User fault diagnosis]
The user failure diagnosis is a failure diagnosis performed by a general user, and the content of the failure diagnosis result information is limited compared to the content of failure diagnosis result information in a serviceman failure diagnosis described later. That is, in this user failure diagnosis, only the abnormality that is currently occurring and the abnormality level is high is output as the failure diagnosis result information. In this user failure diagnosis, only when an abnormality relating to a reference abnormality code (for example, “A5” (see FIG. 13)) transmitted from the remote controller 301c matches an abnormality currently occurring, the indoor unit 301a A buzzer sound (long sound) is output from the speaker 313.

[Serviceman fault diagnosis]
The serviceman failure diagnosis is a failure diagnosis performed by a serviceman who repairs or inspects the air conditioner. The content of the failure diagnosis result information is an abnormality output in the above-described user failure diagnosis (an abnormality currently occurring). In addition, an abnormality having a high abnormality level), an abnormality having a low abnormality level, or an abnormality that has occurred in the past are output as failure diagnosis result information. In this serviceman failure diagnosis, an abnormality relating to a reference abnormality code (for example, “A5” (see FIG. 14)) transmitted from the remote controller 301c, a predetermined abnormality (current abnormality, past abnormality and abnormality). If any of the abnormalities having a low level matches, a buzzer sound (long sound) is output from the speaker 313 of the indoor unit 301a. Accordingly, even if there is no abnormality that is currently occurring, if there is an abnormality that has occurred in the past (for example, abnormality code: A1), this serviceman failure diagnosis uses the reference abnormality code ( A buzzer sound (long sound) is output from the speaker 313 when A1) is transmitted. However, in the above-described user failure diagnosis, the buzzer sound is not output from the speaker 313 even if the reference abnormality code (A1) is transmitted from the remote controller 301c. Not output.

  FIG. 15 is a flowchart of user failure diagnosis and serviceman failure diagnosis. Next, a user failure diagnosis and a serviceman failure diagnosis according to the third embodiment will be described in detail with reference to FIGS.

  First, when a failure diagnosis request signal and a reference abnormality code are transmitted by operating a remote control 301c of a general user or a service person (step S311), the indoor unit 301a receives the failure diagnosis request signal and the reference abnormality code. It is determined whether or not it has been done (step S321). When the failure diagnosis request signal is transmitted in step S311 described above, as shown in FIG. 13, the first failure diagnosis request signal is transmitted by long pressing the cancel button 311d, and as shown in FIG. In addition, the second failure diagnosis request signal may be transmitted by simultaneously pressing the set temperature change button (both the set temperature increase button and the set temperature decrease button) and the operation switching button 331b.

  If the indoor unit 301a determines that a failure diagnosis request signal (first or second failure diagnosis request signal) and a reference abnormality code have been received (step S321: Yes), the signal is transmitted to the one-way remote control 301c. It is determined whether or not the signal is transmitted from (step S322). Since the remote controller 301c according to the third embodiment is a remote controller capable of one-way communication with the indoor unit 301a (step S322: Yes), it is determined whether to execute a user failure diagnosis or a serviceman failure diagnosis. (Step S323). Specifically, whether the failure diagnosis request signal received in step S321 is a user failure diagnosis request signal (first failure diagnosis request signal) or a serviceman failure diagnosis request signal (second failure diagnosis request signal). Judge whether or not.

  If the failure diagnosis request signal is a user failure diagnosis request signal (first failure diagnosis request signal) (step S323: Yes), it is determined whether or not an abnormality is currently occurring (step S324). If an abnormality is presently occurring, since the operation LED 310 provided on the front surface of the indoor unit 301a is blinking (see FIG. 1), in this step S324, it is determined whether or not the operation LED 310 is blinking. It can be said that they are doing.

  If an abnormality has occurred (when the operation LED 310 is blinking) (step S324: Yes), an abnormality code that is compared with the reference abnormality code transmitted from the remote control 301c is displayed as an abnormality that is currently occurring. As the abnormal code related to (step S325), if those abnormal codes match, a buzzer sound (long sound) is output from the speaker 313 (step S326). On the other hand, if no abnormality currently occurs (when the operation LED 310 is not blinking) (step S324: No), an abnormality code to be compared with the reference abnormality code transmitted from the remote control 301c is “ As a normal code indicating “no abnormality” (step S327), if the abnormal codes match (when the abnormal code for reference transmitted from the remote control 301c is a normal code), a buzzer sound (long sound) is output from the speaker 313. . (Step S326).

  On the other hand, when the failure diagnosis request signal is a serviceman failure diagnosis request signal (second failure diagnosis request signal) (step S323: No), the reference abnormality code transmitted from the remote control 301c and the predetermined abnormality code are transmitted. If any of the abnormal code related to the currently occurring abnormality, the abnormal code related to the abnormality that occurred in the past, and the abnormal code related to the abnormality whose abnormality level is lower than these abnormalities, the buzzer sound from the speaker 313 ( (Long sound) is output (step S328). In this way, user failure diagnosis and serviceman failure diagnosis are executed.

(Fourth embodiment)
FIG. 16 is a block diagram of an air conditioner according to a fourth embodiment of the present invention. FIG. 17 is a diagram illustrating an operation method for executing a user fault diagnosis and a notification method of fault diagnosis result information. FIG. 18 is an operation method for executing a serviceman fault diagnosis and fault diagnosis result information. It is the figure which showed the alerting | reporting method. Hereinafter, with reference to FIGS. 16-18, the air conditioner which concerns on 4th Embodiment of this invention is demonstrated in detail. In the fourth embodiment, unlike the third embodiment in which the failure diagnosis result information is notified by the buzzer sound output from the speaker 313 of the indoor unit 301a, the display panel 413 provided with the failure diagnosis result information in the indoor unit 401a. The air conditioner 401 that outputs the above will be described. In this 4th Embodiment, except having provided the display panel 413 in the indoor unit 401a, since it is the same as that of the air conditioner 301 of the above-mentioned 3rd Embodiment, the description is abbreviate | omitted suitably.

  As shown in FIG. 16, the air conditioner 401 includes an indoor unit 401a, an outdoor unit 401b, and a remote controller 401c capable of infrared communication with the indoor unit 401a. And the infrared receiving part 411 which receives the signal transmitted from driving | operation LED410 and the remote control 401c is provided in the front surface of the indoor unit 401a. Further, the indoor unit 401a of the present embodiment is provided with a display panel 413 capable of displaying predetermined characters, symbols, and the like by emitting a plurality of LEDs arranged side by side. The operation LED 410, the infrared receiving unit 411, and the display panel 413 are connected to a control unit 412 that controls the operation of each unit of the indoor unit 401a. The control unit 412 is connected to a control unit 422 provided in the outdoor unit 401b.

  And in this embodiment, as shown in FIG. 17, the screen which selects the abnormality code for a reference transmitted to the indoor unit 401a is displayed by long-pressing the cancellation button 431d. Here, the reference abnormality code selected by pressing the set temperature change button 431c is transmitted to the indoor unit 401a together with a signal relating to user failure diagnosis (hereinafter referred to as a first failure diagnosis request signal), and “ "User failure diagnosis" is executed. In the present embodiment, as shown in FIG. 18, a screen for selecting a reference abnormality code to be transmitted to the indoor unit 401a is displayed by simultaneously pressing the set temperature change button 431c and the operation switching button 431b. The Here, the reference abnormality code selected by pressing the set temperature change button 431c is transmitted to the indoor unit 401a together with a signal relating to serviceman failure diagnosis (hereinafter referred to as a second failure diagnosis request signal), “Serviceman fault diagnosis” is executed. When “user failure diagnosis” or “serviceman failure diagnosis” is executed, failure diagnosis result information is output by blinking the display panel 413 of the indoor unit 401a.

[User fault diagnosis]
The user failure diagnosis is a failure diagnosis performed by a general user, and the content of the failure diagnosis result information is limited compared to the content of failure diagnosis result information in a serviceman failure diagnosis described later. That is, in this user failure diagnosis, only the abnormality that is currently occurring and the abnormality level is high is output as the failure diagnosis result information. In this user failure diagnosis, the indoor unit 401a only has an abnormality associated with a reference abnormality code (for example, “A5” (see FIG. 17)) transmitted from the remote controller 401c and an abnormality currently occurring. Each LED of the display panel 413 blinks.

[Serviceman fault diagnosis]
The serviceman failure diagnosis is a failure diagnosis performed by a serviceman who repairs or inspects the air conditioner. The content of the failure diagnosis result information is an abnormality output in the above-described user failure diagnosis (an abnormality currently occurring). In addition, an abnormality having a high abnormality level), an abnormality having a low abnormality level, or an abnormality that has occurred in the past are output as failure diagnosis result information. In this serviceman failure diagnosis, an abnormality relating to a reference abnormality code (for example, “A5” (see FIG. 18)) transmitted from the remote controller 401c, a predetermined abnormality (current abnormality, abnormality that has occurred in the past, and abnormality) Each LED on the display panel 413 of the indoor unit 401a blinks when any one of the abnormalities having a low level matches. Accordingly, even if there is no abnormality that is currently occurring, if there is an abnormality that has occurred in the past (for example, abnormality code: A1), the serviceman failure diagnosis uses the reference abnormality code (A1) from the remote control 401c. The display panel 413 blinks when) is transmitted. However, in the above-described user failure diagnosis, the display panel 413 does not blink even if the reference abnormality code (A1) is transmitted from the remote control 401c.

(Fifth embodiment)
FIG. 19 is a diagram illustrating an operation method for executing user failure diagnosis and a notification method of failure diagnosis result information, and FIG. 20 is an operation method for executing serviceman failure diagnosis and failure diagnosis result information. It is the figure which showed the alerting | reporting method. Hereinafter, with reference to FIG.19 and FIG.20, the air conditioner which concerns on 5th Embodiment of this invention is demonstrated in detail. In the fifth embodiment, unlike the third embodiment in which the failure diagnosis request signal and the reference abnormality code are transmitted from the one-way remote controller 301c, the failure diagnosis request signal is transmitted (the reference abnormality code is not transmitted). The air conditioner provided with the direction remote controller 501c will be described. Since the fifth embodiment has the same configuration as the air conditioner 301 of the third embodiment described above except that the reference abnormal code is not transmitted, the description thereof will be omitted as appropriate.

  In the fifth embodiment, as shown in FIG. 19, a signal relating to user failure diagnosis (hereinafter referred to as a first failure diagnosis request signal) is transmitted to the indoor unit 501a by pressing and holding the cancel button 531d. “User failure diagnosis” is executed. Further, in the present embodiment, as shown in FIG. 20, by simultaneously pressing the set temperature change button 531c and the operation switching button 531b, a signal related to serviceman failure diagnosis (hereinafter referred to as a second failure diagnosis request signal). Is transmitted to the indoor unit 501a, and “serviceman fault diagnosis” is executed. When “user failure diagnosis” or “serviceman failure diagnosis” is executed, an abnormal code (“A1” in the figure) and a normal code (for example, “00”) related to the failure diagnosis result information are output from the speaker 513. Output as audio.

[User fault diagnosis]
The user failure diagnosis is a failure diagnosis performed by a general user, and the content of the failure diagnosis result information is limited compared to the content of failure diagnosis result information in a serviceman failure diagnosis described later. That is, in this user failure diagnosis, only the abnormality that is currently occurring and the abnormality level is high is output as the failure diagnosis result information. In this user failure diagnosis, when a failure diagnosis request signal is transmitted from the one-way remote controller 501c, an abnormality code related to the abnormality is transmitted from the speaker 513 from the speaker 513 of the indoor unit 501a only when there is an abnormality currently occurring. Is output.

[Serviceman fault diagnosis]
The serviceman failure diagnosis is a failure diagnosis performed by a serviceman who repairs or inspects the air conditioner. The content of the failure diagnosis result information is an abnormality output in the above-described user failure diagnosis (an abnormality currently occurring). In addition, an abnormality having a high abnormality level), an abnormality having a low abnormality level, or an abnormality that has occurred in the past are output as failure diagnosis result information. In this serviceman failure diagnosis, when a failure diagnosis request signal is transmitted from the one-way remote controller 501c, an abnormality code relating to an abnormality currently occurring, an abnormality that has occurred in the past, and an abnormality having a low abnormality level is sequentially output from the speaker 513. Is done. Therefore, even if there is no abnormality that is currently occurring, if there is an abnormality that has occurred in the past (for example, abnormality code: A1), this serviceman failure diagnosis outputs “A1 abnormality” from the speaker 513. However, in the above-described user failure diagnosis, it is not output from the speaker 513 (or “no abnormality” is output from the speaker 513).

  FIG. 21 is a flowchart of user failure diagnosis and serviceman failure diagnosis. Next, a user failure diagnosis and a serviceman failure diagnosis according to the fifth embodiment will be described in detail with reference to FIGS.

  First, when a failure diagnosis request signal (in this fifth embodiment, a reference abnormality code is not transmitted) is transmitted by an operation of a remote control 501c by a general user or a service person (step S511), the indoor unit 501a It is determined whether a failure diagnosis request signal has been received (step S521). When the failure diagnosis request signal is transmitted in step S511 described above, the first failure diagnosis request signal is transmitted by pressing and holding the cancel button 531d as shown in FIG. 19, and as shown in FIG. In addition, the second failure diagnosis request signal is transmitted by simultaneously pressing the set temperature change button 531c and the operation switching button 531b.

  If the indoor unit 501a determines that a failure diagnosis request signal (first or second failure diagnosis request signal) has been received (step S521: Yes), the signal transmitted from the one-way remote controller 501c. Is determined (step S522). Since the remote controller 501c according to the fifth embodiment is a remote controller capable of one-way communication with the indoor unit 501a (step S522: Yes), it is determined whether to execute a user failure diagnosis or a serviceman failure diagnosis. (Step S523). Specifically, whether the failure diagnosis request signal received in step S521 is a user failure diagnosis request signal (first failure diagnosis request signal) or a serviceman failure diagnosis request signal (second failure diagnosis request signal). Judge whether or not.

  When the failure diagnosis request signal is a user failure diagnosis request signal (first failure diagnosis request signal) (step S523: Yes), it is determined whether or not an abnormality currently occurs (step S524). If an abnormality is presently occurring, the operation LED provided on the front surface of the indoor unit 501a is blinking (see FIG. 1). In this step S524, it is determined whether or not the operation LED is blinking. It can be said that they are doing.

  If an abnormality has occurred (when the operation LED is blinking) (step S524: Yes), the abnormality code related to the abnormality is output from the speaker 513 of the indoor unit 501a (step S525). On the other hand, when no abnormality is present (when the operation LED is lit) (step S524: No), the signal is not output from the speaker 513 as “no abnormality”. (Step S526). At this time, “no abnormality” may be output from the speaker 513.

  On the other hand, when the failure diagnosis request signal is a serviceman failure diagnosis request signal (second failure diagnosis request signal) (step S523: No), the abnormality code relating to the currently occurring abnormality, the abnormality occurring in the past An abnormal code and an abnormal code relating to an abnormality having an abnormality level lower than these abnormalities are sequentially output from the speaker 513. In this way, user failure diagnosis and serviceman failure diagnosis are executed.

(Sixth embodiment)
FIG. 22 is a diagram illustrating an operation method for executing user failure diagnosis and a notification method of failure diagnosis result information, and FIG. 23 is an operation method for executing serviceman failure diagnosis and failure diagnosis result information. It is the figure which showed the alerting | reporting method. Hereinafter, with reference to FIG.22 and FIG.23, the air conditioner which concerns on 6th Embodiment of this invention is demonstrated in detail. In the sixth embodiment, unlike the fourth embodiment in which the failure diagnosis request signal and the reference abnormality code are transmitted from the one-way remote controller 401c, the failure diagnosis request signal is transmitted (the reference abnormality code is not transmitted). The air conditioner provided with the direction remote controller 601c will be described. The air conditioner according to the sixth embodiment is different from the air conditioner according to the fifth embodiment in which the abnormal code is output by the speaker 513 in that the abnormal code is displayed on the display panel 613. Since the sixth embodiment has the same configuration as that of the air conditioner of the fourth embodiment described above except that the reference abnormal code is not transmitted, the description thereof is omitted as appropriate.

  In the sixth embodiment, as shown in FIG. 22, by pressing and holding the cancel button 631d, a signal related to user failure diagnosis (hereinafter referred to as a first failure diagnosis request signal) is transmitted to the indoor unit 601a. “User failure diagnosis” is executed. In the present embodiment, as shown in FIG. 23, a signal relating to a serviceman failure diagnosis (hereinafter referred to as a second failure diagnosis request signal) is obtained by simultaneously pressing the set temperature change button 631c and the operation switching button 631b. Is transmitted to the indoor unit 601a, and “serviceman fault diagnosis” is executed. When “user failure diagnosis” or “serviceman failure diagnosis” is executed, an abnormal code (“A5” in the figure) and a normal code (for example, “00”) related to the failure diagnosis result information are displayed in the indoor unit 601a. Is displayed on a display panel 613 provided in the screen.

[User fault diagnosis]
The user failure diagnosis is a failure diagnosis performed by a general user, and the content of the failure diagnosis result information is limited compared to the content of failure diagnosis result information in a serviceman failure diagnosis described later. That is, in this user failure diagnosis, only the abnormality that is currently occurring and the abnormality level is high is output as the failure diagnosis result information. In this user failure diagnosis, when a failure diagnosis request signal is transmitted from the one-way remote controller 601c, an abnormality code is displayed on the display panel 613 of the indoor unit 601a only when an abnormality currently occurring is present.

[Serviceman fault diagnosis]
The serviceman failure diagnosis is a failure diagnosis performed by a serviceman who repairs or inspects the air conditioner. The content of the failure diagnosis result information is an abnormality output in the above-described user failure diagnosis (an abnormality currently occurring). In addition, an abnormality having a high abnormality level), an abnormality having a low abnormality level, or an abnormality that has occurred in the past are output as failure diagnosis result information. In this serviceman failure diagnosis, when a failure diagnosis request signal is transmitted from the one-way remote controller 601c, an abnormality code relating to an abnormality currently occurring, an abnormality that has occurred in the past, and an abnormality having a low abnormality level is sequentially displayed on the display panel 613. Displayed (all abnormalities may be displayed simultaneously). Therefore, even if there is no abnormality that is currently occurring, if there is an abnormality that has occurred in the past (for example, abnormality code: A5), this serviceman failure diagnosis displays “A5” on the display panel 613. However, in the above-described user failure diagnosis, nothing is displayed on the display panel 613 (or “no abnormality” is displayed on the display panel 613).

(Seventh embodiment)
FIG. 24 is a perspective view showing a remote controller that switches a failure diagnosis request signal using a switch. Next, an air conditioner remote control 701c according to a seventh embodiment of the present invention will be described with reference to FIG.

  A remote controller 701c according to the seventh embodiment is provided with a switch SW for switching a failure diagnosis signal. As shown in FIG. 24A, when the switch SW is arranged on the lower side of the remote controller 701c, the first failure diagnosis request signal can be transmitted, and as shown in FIG. When the switch SW is arranged on the upper side of the remote controller 701c, the second failure diagnosis request signal can be transmitted. That is, the remote controller 701c according to the seventh embodiment is capable of switching the type of the failure diagnosis request signal by hardware, and therefore the first to sixth switches the type of the failure diagnosis request signal by operating a button on the operation unit. This is different from the remote controller 701c according to the embodiment.

(Eighth embodiment)
FIG. 25 is a block diagram of a user remote controller and a serviceman remote controller. Next, with reference to FIG. 25, remote controllers 801A and 801B of the air conditioner according to the eighth embodiment of the present invention will be described.

  In the eighth embodiment, a dedicated user remote controller 801A capable of transmitting the first failure diagnosis request signal and a dedicated serviceman remote controller 801B capable of transmitting the second failure diagnosis request signal are prepared separately. Yes. Specifically, information such as an identifier for identifying the user remote controller 801A is stored in the storage unit 834A of the user remote controller 801A shown in FIG. 25A, and the serviceman shown in FIG. The storage unit 834B of the remote controller 801B stores information such as an identifier that identifies the remote controller 801B for serviceman. That is, the remote controllers 801A and 801B according to the eighth embodiment are capable of switching the type of the failure diagnosis request signal in software, and the first to first switching the type of the failure diagnosis request signal by operating a button on the operation unit. This is different from the remote control according to the sixth embodiment. Note that a volatile RAM or the like can be used for the storage unit, and a nonvolatile EEPROM or the like can also be used.

  As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not only by the above description of the embodiments but also by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  By using the present invention, it is possible to obtain an indoor unit and an air conditioner that can notify an abnormality so as not to give anxiety to a general user.

It is the perspective view which showed the whole structure of the air conditioner which concerns on 1st Embodiment of this invention. It is a block diagram of the air conditioner shown in FIG. It is the front view which showed the remote control of the state which closed the cover part of the air conditioner shown in FIG. It is the front view which showed the remote control of the state which opened the cover part of the air conditioner shown in FIG. It is the figure which showed the operation method and display screen for performing a user failure diagnosis. It is the figure which showed the operation method and display screen for performing a serviceman failure diagnosis. It is a flowchart of a user failure diagnosis and a serviceman failure diagnosis. It is a block diagram of the air conditioner which concerns on 2nd Embodiment of this invention. It is the figure which showed the operation method for performing a user failure diagnosis, and the alerting | reporting method of failure diagnosis result information. It is the figure which showed the operation method for performing a serviceman failure diagnosis, and the alerting | reporting method of failure diagnosis result information. It is a block diagram of the air conditioner which concerns on 3rd Embodiment of this invention. It is the front view which showed the remote control of the air conditioner shown in FIG. It is the figure which showed the operation method for performing a user failure diagnosis, and the alerting | reporting method of failure diagnosis result information. It is the figure which showed the operation method for performing a serviceman failure diagnosis, and the alerting | reporting method of failure diagnosis result information. It is a flowchart of a user failure diagnosis and a serviceman failure diagnosis. It is a block diagram of the air conditioner which concerns on 4th Embodiment of this invention. It is the figure which showed the operation method for performing a user failure diagnosis, and the alerting | reporting method of failure diagnosis result information. It is the figure which showed the operation method for performing a serviceman failure diagnosis, and the alerting | reporting method of failure diagnosis result information. It is the figure which showed the operation method for performing the user failure diagnosis which concerns on 5th Embodiment of this invention, and the alerting | reporting method of failure diagnosis result information. It is the figure which showed the operation method for performing a serviceman failure diagnosis, and the alerting | reporting method of failure diagnosis result information. It is a flowchart of a user failure diagnosis and a serviceman failure diagnosis. It is the figure which showed the operation method for performing the user failure diagnosis which concerns on 6th Embodiment of this invention, and the alerting | reporting method of failure diagnosis result information. It is the figure which showed the operation method for performing a serviceman failure diagnosis, and the alerting | reporting method of failure diagnosis result information. It is the perspective view which showed the remote control which switches the failure diagnosis request signal based on 7th Embodiment of this invention with a switch. It is a user's remote control which concerns on 8th Embodiment of this invention, a service person's remote control, and a block diagram.

Explanation of symbols

1, 201, 301, 401 Air conditioner 1a, 201a, 301a, 401a, 501a, 601a Indoor unit 1c, 201c, 301c, 401c, 501c, 601c, 701c, 801A, 801B Remote control 10, 310, 410 Operation LED (abnormal Notification means)
11 Infrared transmission / reception unit (reception means)
311 and 411 Infrared receiver (receiver)
313,513 Speaker (output means, diagnostic result notifying means)
413, 613 Display panel (output means, diagnostic result notifying means)
30 display section (output means, diagnosis result notifying means)
234 Speaker (output means, diagnosis result notifying means)
SW switch (specifying means)
834A, 834B storage unit (designating means)

Claims (10)

An indoor unit that outputs failure diagnosis result information in response to a failure diagnosis request signal transmitted from a remote control,
Receiving means capable of receiving a plurality of types of failure diagnosis request signals transmitted from the remote control;
An indoor unit comprising: output means capable of outputting different failure diagnosis result information according to the type of failure diagnosis request signal received by the receiving means.   The plurality of types of failure diagnosis request signals include a first failure diagnosis request signal for requesting only the content of an abnormality occurring when the failure diagnosis request signal is received by the receiving unit. The indoor unit according to claim 1. Further comprising an abnormality notifying means for notifying that an abnormality has occurred in the indoor unit;
The output means, when the first failure diagnosis request signal is received by the receiving means, outputs the failure diagnosis result information only when the abnormality notifying means notifies the abnormality. The indoor unit according to claim 2, wherein the indoor unit is characterized.   The plurality of types of failure diagnosis request signals are requested to have an abnormality content occurring when the failure diagnosis request signal is received by the receiving means and an abnormality content occurring before receiving the failure diagnosis request signal. The indoor unit according to any one of claims 1 to 3, wherein a second failure diagnosis request signal is included. The remote control and the indoor unit are capable of bidirectional communication,
The indoor unit according to any one of claims 1 to 4, wherein the output unit outputs failure diagnosis result information to a diagnosis result notification unit provided in the remote controller. The remote controller is capable of one-way communication with the indoor unit,
The indoor unit according to any one of claims 1 to 4, wherein the output unit outputs failure diagnosis result information to a diagnostic result notifying unit provided in the indoor unit. The failure diagnosis request signal includes an abnormality code corresponding to a predetermined abnormality content,
When the abnormality content related to the abnormality code matches the abnormality content occurring when the failure diagnosis request signal is received, the output means outputs failure diagnosis result information to the diagnosis result notifying means. The indoor unit according to claim 6, wherein:   The indoor unit according to any one of claims 1 to 7, wherein the plurality of types of failure diagnosis request signals are transmitted when different remote controllers are operated. The remote controller is provided with designation means (including hardware and software) for designating the type of the failure diagnosis request signal to be transmitted.
The indoor unit according to any one of claims 1 to 7, wherein the remote controller transmits a failure diagnosis request signal of a type specified by the specifying unit. The indoor unit according to any one of claims 1 to 9,
An air conditioner including an outdoor unit communicably connected to the indoor unit.

Images