TROUBLE SHOOTING
4-2-3) When the Comp does not operate(INV)
Start
Normal
Replace MAIN PBA
or Repair the
connection
Check in 5 minutes.
NO
NO
NO
NO
NO
YES
Replace
F-Sensor.
Repair the sensing
part or Replace PBA
YES
YES
YES
Replace Main PBA
Forced Operation signal
sound should be checked
If Red LED in the Main
PBA or Inverter PBA is
turned on, it means COMP
is working.
Check the connector
contacts
NO
Replace Sub(Inverter)
PBA
NO
Replace COMP ASS'Y
NO
YES
NO
YES
YES
YES
YES
YES
Five minutes
have passed since COMP
was off
When Forced
Operation Mode is activated, COMP
operates
Comp
operation signal (CN79 #4) is High
(about 2 - 2.5V)
Connection
between Main & Sub(Inverter)
PBA is normal
F-Sensor is good.
Temperature sensing part
of MAIN PBA is good.
COMP connector(4pin) is good
Red LED in the Main PBA is on.
COMP ASS'Y is good.
(Check Resistance of
Compressor)
Check the
connector(CN79) contact
Refer to the Test
function in this
manual
200~400Hz 50%
Duty Signal
Output
69
Comp. Type(Refrigerant) Main
8.9
9.0
Sub
10.4
10.7
ESSE(R600a)
BK(R134a)
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