43
4. TROUBLESHOOTING
4-10) When the Compressor does not operate
MAIN MICOM #18 Voltage checking method
- Voltage measure about 5V
Check in 5 minutes.
Replace PBA Ass'y
Insert Connector completely
Replace and repair COMP
assembly.
Replace F-Sensor
Replace PBA Ass'y
Replace PBA Ass'y
Repair the sensing part or
Replace PBA
Replace MAIN PBA or Repair
the connection
5 minutes
have passed since COMP
was off
When Forced
Operation Mode is activated,
COMP operates
Is Micom #69 signal is
High (about5V)
Is the voltage of
IC72 #15 pin between
0~1V
COMP relay is normal.
(RY73)
The Contact of
connector CN71 is
normal.
COMP assembly is
normal.
Start
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
YES
YES
YES
YES
YES
Normal
F-Sensor is good
Temperature
sensing part of MAIN PBA
is good.
Refer to the Test
Function in this manual
Forced Operation Signal
Sound should be checked
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