LG GR-B207WVQ.CSWQAGE Service Manual page 34

TROUBLE DIAGNOSIS
CLAIMS.
8. Faulty lamp
1) Lamp problem.
(freezer and
refrigerator
2) Bad lamp assembly.
compartment).
3) Bad lamp socket.
Disconnection.
Short.
Bad elasticity of contact.
Bad contact(corrosion).
4) Door switch.
9. Faulty internal
1) Lead wire is damaged.
voltage(short).
Wire damage when assembling P.T.C. Cover.
Outlet burr in the bottom plate.
Pressed by cord heater. lead wire, evaporator pipe.
2) Exposed terminal.
Compressor Compartment terminal. - Touching other
Freezer compartment terminal. - Touching evaporator pipe.
3) Faulty parts.
Transformer.
Compressor.
Plate heater.
Melting fuse.
Cord heater.
Sheath heater.
CAUSES AND CHECK POINTS.
Filament blows out.
Glass is broken.
Not inserted.
Loosened by vibration.
Bad soldering.
Bad rivet contact.
Water penetration.
Its own defect.
Refrigerator and freezer switch is reversed.
Travlel distance.
Bad connection.
Bad terminal contact.
P/U liquid leak..
components.
Coil contacts cover.
Welded terminal parts contact cover.
Bad coil insulation.
Sealing is broken. Moisture penetration.
Pipe damaged. Moisture penetration.
Bad sealing.
- 35 -
HOW TO CHECK
Low water
level in tray.
I Connect conduction and
non-conduction parts and
check with tester.
Conduction: NG.
Resistance∞: OK.