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LG LFC20770SB Service Manual page 58

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No
Checking flow
1-. Unplug Freezer Fan in Freezer
7
Compartment.
2-. Execute TEST MODE #1
3-. Check Voltage in CON4 between wires
White and Purple.
Result & SVC Action
Result
0VDC
5VDC
- 57 -
SVC Action
Replace Main PCB
Replace Fan Motor.
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