81
troublesHooting
4-2-8. When Compressor does not run (Inverter COMP.)
Refer to the TEST
Function in this manual
Start
Check in 10 minutes
Replace MAIN PBA or
Repair the connection
Replace F-Sensor
10 minutes have
passed since COMP
was off
No
No
No
1) Check the COMP Wire
2) Check the Compressor
Replace COMP ASS'Y
No
1) Check the wire harness
2) Replace the MAIN PCB
0~800Hz 50%
Duty
Signal Output
No
Replace INVERTER
PCB
No
Repair the sensing
part or Replace
MAIN PBA
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
When Forced Operation
mode is activated, COMP
operates
COMP operation
signal(CN103 #4) is
High(about 2-2.5V)
Is DC 15V applied to
ZD501?
COMP Connector(CN04)
is Good
No
COMP ASS'Y is Good
F-Sensor is Good
Temperature sensing
part of MAIN PBA is
Good
Normal
Forced Operation signal sound
should be checked