Total Ver.02
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Hotpoint,Mba
4033 Cv
LG_MULTI_F_3828A20097W_1[1]
Samsung
Refrigerador
346481235-
WD856UHSAWQ-
0
TROUBLESHOOTING
4-2-5. When the Compressor is not working (INVERTER PBA)
Start
Yes
10 minutes have
passed since COMP
was off
Check in 10 minutes
Replace MAIN PBA or
Repair the connection
No
Replace the Sensor
No
No
No
Repair the sensing
part or Replace MAIN PBA
No
Yes
Yes
No
When Forced Operation
mode is activated, COMP operates
Yes
Temperature Sensor is normal?
Yes
Temperature sensing
part of MAIN PBA is Good
Check the COMP wire
Check the Compressor
Check AC Power wire
Replace COMP ASS'Y
No
Yes
COMP operation
Signal(CN201 ①↔③) is
High(about DC 2-2.5V
or AC 0~5.0V)
Yes
Is DC 16V applied to
ZD501?
Yes
Yes
CN101/CN102 Connector is Good
COMP ASS'Y is Good
Refer to Test Function in this
manual
Forced Operation signal
sound should be checked
0~800Hz 50% Duty Signal
Output
When the inverter PBA LED
is ON, it indicates that the
compressor does operate
normally
Check the wire harness
Replace the MAIN PBA
☞ SMPS Primary Voltage ch16V) : REG1(+5V)
Replace INVERTER PBA
No