Refrigeration Is Weak - LG GR-B207WVQ.CSWQAGE Service Manual

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 Heater
disconnected. Sheath
-29 -
HOW TO CHECK
I Check visually.
Inject through the
hole.
Seal with drain.
Wire is cut.
I Check terminal
- Lead wire.
Conduction: OK.
- Heating wire.
No conduction: NG.
- Contact point
If wire is not cut, refer to
between heating and
resistance.
electric wire.
P=Power
Dent by fine evaporator.
V=Voltage
Heating wire is corroded
R=Resistance
- Water penetration.
Bad terminal connection.
V
P= —
R
V
R= —
P
2
2