10 Troubleshooting
Troubleshooting in check mode
SMGB0091 rev.2 - 11/2015
252
Result
Repeat
From previous page
Press
If there is a next unit
(Self-checking indication
of the next unit)
(Repetition of self-checking
of unit number “1”)
After 7 seconds
After 1 to 5 seconds
Press
(ex.) Indication of
unit Number “2”
Press
After 1 second
Release PCB check mode
?
N O T E
• If this indication continues and the alarm code “
1
” is not displayed, this means that each one of indoor unit is not connected to the
remote control switch. Check the wiring between the remote control switch and the indoor unit.
• In this troubleshooting procedure, checking of the following parts of the PCB is not available.
- PCB in indoor unit:
relay circuit, DIP switch, option circuit, fan circuit, protection circuit.
- PCB in RASC unit:
relay circuit, DIP switch, option circuit.
• If this troubleshooting is performed in the system using the central station, the indication of the central station may change during this
procedure. However, this is not abnormal.
• After this troubleshooting, the memory of the abnormal operation occurrence counter, which was described before, will be deleted.