LG SxS GR-P247 Service Manual page 74

TROUBLE DIAGNOSIS
CLAIMS.
3. Refrigeration
1) Refrigerant Partly leaked.
is weak.
2) Poor defrosting capacity.
Drain path (pipe) clogged.
Defrost heater does not
generate heat.
CAUSES AND CHECK POINTS.
Weld joint leak.
Parts leak.
Inject P/U into drain hose.
P/U lump input.
Foreign materials
penetration.
Screw input.
Other foreign materials
input.
Cap drain is not disconnected.
Parts Plate
disconnected. heater
Cord
heater
- 74 -
HOW TO CHECK
I Check visually.
Inject through the
hole.
Seal with drain.
Wire is cut.
I Check terminal
- Heating wire.
Conduction: OK.
- Contact point
No conduction: NG.
between heating
If wire is not cut, refer to
and electric wire.
resistance.
Dent by fin evaporator.
P=Power
Poor terminal contacts.
V=Voltage
R=Resistance
Wire is cut.
- Lead wire.
V
P= —
- Heating wire.
R
- Contact point
between heating and
V
R= —
electric wire.
P
Heating wire is corroded
- Water penetration.
Bad terminal connection.
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