LG GR-B197DVCA Service Manual page 79

Problems Causes
High Cycle pipe is clogged.
temperature in
the freezer
compartment.
Leak at loop pipe weld joint
(discharge) in compressor.
Faulty cooling fan in the compressor
compartment.
Checks
Check sequence.
1. Check temperature of condenser
manually.
If it is warm, it is OK.
If it is not, compressor discharging
joints might be clogged.
2. Manually check whether hot line
pipe is warm.
If it is warm, it's OK.
If it is not, condenser outlet weld
joints might be colgged.
Check sequence.
1. Manually check whether
condenser is warm, It is not warm
and the frost forms partly on the
evaporator in the freezer
compartment.
Check sequence.
1. Check cooling fan operation.
2. Check that cooling fan is
disconnected from the motor.
Measures
- Heat up compressor discharging
weld joints with touch, disconnect
the pipes, and check the clogging.
Remove the causes of clogging,
weld, evacuate, and recharge
the refrigerant.
- If it's warm, it's OK. If it's not,
condenser discharging line weld
joints might be clogged.
Disconnect with torch, remove the
causes, evacuate, and recharge
seal refrigerant.
Replace the compressor, weld,
evacuate, and recharge refrigerant.
- Replace if motor does not operate.
- If fan is disconnected, check fan
damage and reassemble it.
Refer to fan motor disassembly
and assembly sequence.
Remarks
Direr must be replaced.
Drier must be replaced.