TROUBLE DIAGNOSIS
- 60 -
CLAIMS.
CAUSES AND CHECK POINTS.
HOW TO CHECK
3. Refrigeration
is weak.
4) No cooling air circulation.
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.
Faulty fan motor.
Small cooling air
discharge.
Fan is
constrained.
Insufficient
motor RPM
Faulty fan.
Shorud. Bent.
Ice and foreign materials on rotating parts.
Fan shroud contact. - Clearance.
Damping evaporator contact.
Accumulated residual frost.
Fan misuse.
Bad shape.
Loose connection. - Not tightly connected.
Insert depth.
Rating misuse.
Small capacity.
Low valtage.
Malfunction of charging cylinder.
Wrong setting of refrigerant.
Insufficient compressor. - Faulty compressor.
Fan overload. - Fan misuse.
Bad low termperature RPM characteristics.
Rated power misuse.
Low voltage.
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.
■
Check visually after
disassembly.
■
Check visually after
disassembly.
Summary of Contents for LSC 26945SW
Page 33: ...1 8 Stepping motor operation circuit 1 LSC26945TT LSC26945SW EXPLANATION FOR MICOM CIRCUIT 33 ...
Page 43: ...2 2 Parts list 1 LSC26945TT LSC26945SW EXPLANATION FOR MICOM CIRCUIT 43 ...
Page 44: ...EXPLANATION FOR MICOM CIRCUIT 44 ...
Page 45: ...2 3 DISPLAY ASSEMBLY part diagram 1 LSC26945TT LSC26945SW EXPLANATION FOR MICOM CIRCUIT 45 ...
Page 46: ...2 4 DISPLAY circuit diagram 1 LSC26945TT LSC26945SW 46 ...
Page 48: ...EXPLANATION FOR MICOM CIRCUIT 48 ...
Page 55: ... 1 LSC26945TT LSC26945SW CIRCUIT 55 3854JD1125C ...