Troubleshooting Compressor; Compressor Activation Defect - LG LTCS20020 Series Service Manual

4. TROUBLESHOOTING COMPRESSOR

4-1 Compressor activation defect

1
- Open PWB Cover
Test Mode Button
2
- Check the number of LED blinking
(Refer to the next chapter for actions for
each number of LED blinking)
3
- Open back cover
4
1. CHECK COMP and
Discharge PIPE
temperature
If COMP & FAN are not operated at the same time, check the operation after forcing the operation
in TEST MODE in MAIN PCB, and perform power RESET after checking the voltage on COMP side.
If COMP is normal it
will not blink
2. Check wheter C-Fan
operates
11
- Check disconnection in OLP
and Comp connection (U,V,W
=SB ,YL , RD)
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