Electronic Parts Troubleshooting Guide
1) No cooling operation performed.
Is the AC220V
(AC 240 V) between Connector(CN-
outunit) Pin 1 and Pin 3 of
Main P.C.B
NO
NO | Is the unit operating? |
|
YES
ON/OFF S/W ON
Is it Cooling mode?
YES
Room temp, > Set temp?
YES
YES
Is the input power
AC220V (AC240V) at COMP
Magnetic coil?
YES
Check the magnetic contactor of outdoor unit.
NO
Select the cooling operation mode.
NO
Room temp, >set temp setting
NO
Check the wiring diagram.
Is the DC5V at 14 | NO |
pin of MICOM |
|
YES
Replacement IC02M,
Replacement MICOM
