Service Manual_2023-V2.0
60
10. Compressor
10.1 Compressor on and off control specifications
1.1 When one of the following conditions is met, the compressor stops:
1) Measured temperature in freezer room ≤ Shutdown temperature of freezer room
2) Enter defrosting cycle
3) The compressor runs continuously for more than 3 hours, will stop at least 5 minutes
1.2 When all the following conditions are met, the compressor starts up:
1) Measured temperature in freezer room ≥ Start up temperature of freezer, or when refrigerator is
set to forced cooling mode or fast cooling or fast freezing mode
2) Compressor shutdown time has been more than 5 min
★When 1.1 and 1.2 are not satisfied, the compressor maintains the original state
10.2 Inverter board fault analysis
Troubleshooting and Solutions
The light is always on when the
power is turned on for the first
time, and it is always off after the
compressor is turned on and off
Blink once: light 0.5 second,
extinguish 0.5 second, interval
time(extinguish) is 2 second
Step 1: Measure whether the U-V-W resistance of
compressor is same
Step 2: If ok, replace a new inverter board
Step 3: If the fault still occurs, replace a new
compressor
Blink twice: light 0.5 second,
extinguish 0.5 second, interval
time(extinguish) is 2 second
Measure the voltage between L and N
1）If it is less than 260V, replace a new inverter
board
2）If more than 260V, please check the power
supply and power cable
Blink three times: light 0.5
second, extinguish 0.5 second,
interval time(extinguish) is 2
second
Measure the voltage between L and N
1）If it is less than 160V, replace a new inverter
board
2）If more than 160V, please check the power
supply and power cable
Blink six times: light 0.5 second,
extinguish 0.5 second, interval
time(extinguish) is 2 second
Lack of
phase (One
phase has
no power)
Step 1: Measure whether the U-V-W resistance of
compressor is same
Step 2: If ok, replace a new inverter board
Step 3: If not same, please check the wiring
connection to compressor
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