LG LSC27931SB Service Manual page 46

CLAIMS.
3. Refrigeration
4) No cooling air circulation.
is weak.
Faulty fan motor.
Small cooling air
discharge.
5) Compressor capacity.
6) Refrigerant
too much or too little.
7) Continuous operation
- No contact of temperature controller. - Foreign materials.
8) Damper opens continuously.
Foreign materials
jammed.
Failed sensor. - Position of sensor.
Characteristics
of damper.
9) Food storing place. - Near the outlet of cooling air.
CAUSES AND CHECK POINTS.
Fan is
Fan shroud contact. - Clearance.
constrained. Damping evaporator contact.
Accumulated residual frost.
Insufficient Fan overload. - Fan misuse.
motor RPM Bad low termperature RPM characteristics.
Rated power misuse.
Low voltage.
Faulty fan.
Fan misuse.
Bad shape.
Loose connection. - Not tightly connected.
Insert depth.
Shorud. Bent.
Ice and foreign materials on rotating parts.
Rating misuse.
Small capacity.
Low valtage.
Malfunction of charging cylinder.
Wrong setting of refrigerant.
Insufficient compressor. - Faulty compressor.
Adiabatics liquid dump.
The EPS (styrofoam) drip tray has sediment in it.
A screw or other foreign material has fallen into the drip
tray or damper.
Bad characteristics of its own temperatue.
Parts misuse.
Charge of temperature - Impact.
characteristics.
- 45 -
HOW TO CHECK
• Check visually after
disassembly.
• Check visually after
disassembly.