Mitsubishi Electric CITY MULTI PAC-YT53CRAU Installation Manual page 22

5To check the settings, repeat steps 2 to 4.
To complete the checking process, press the [MODE] and the [
for two seconds or longer.
Response has been received.
[TEMP.
Indoor unit address setting
Current
setting value
10 Self diagnosis
Retrieve the error history of each unit using the Simple MA controller.
1 Switch to the self-diagnosis mode.
When the A [ON/OFF] button and the C [TEMP.
the figure shown below is displayed.
2 Set the address or refrigerant address No. you want to self-diagnosis.
When the B [TEMP.
between 01 and 50 or 00 and 15. Set it to the address No. or refrigerant address No. you want to
self-diagnosis.
Self-diagnosis address
or self-diagnosis
refrigerant address
-------------------------------------------------------------------------------------------------------------------------------------
] [TEMP. ]
[MODE]
Function Setting No. setting
[FAN]
Waiting for response
Response is
received.
Response has been received.
] and C [TEMP.
No
response
The specified indoor unit does not exist.
The setting for the specified Function Setting No. has not
been completed.
] button are pressed for 5 seconds or longer,
] are pressed, the address decreases and increases
– 22 –
FAN] buttons at the same time
Approximately three seconds
after the change operation, the
self-diagnosis refrigerant
address changes from flashing
to a steady light and self-
diagnosis begins.