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9. TROUBLE - SHOOTING
9-1. Compressor does not run at all (Does not cool at all)
Cause
Temperature control set to position "OFF"
Erroneous plug cord inserting
Fault relay assembly.
9-2. Compressor does not run normally
Cause
Source power voltage
Starting voltage
9-3. Compressor runs normally but inside temprature does not drop at all.
Cause
Faulty compressor-evaporator unit.
9-4. Compressor runs normally but inside temprature does not drop at a sufficiently low level.
Cause
Erroneous temperature control setting.
Faulty thermostat
Gaps between door and cabinet.
Frosting on evaporator.
What to be checked
Check control knob setting
Check plug cord inserting
Check conduction of overload relay.
What to be checked
Check power voltage is within +10%
of rating.
Check starting voltage.
What to be checked
After continuing operation for over
20minutes, let a drop of water fall onto
evaporator and see if it becomes frozen.
What to be checked
Check control knob setting.
Short-circuit thermostat terminals and
continue operation for over 20minutes .
If temperature drops, thermostat is faulty.
Check for gaps between door packing
and cabinet.
Check for excessive frosting on
evaporator. ( This will deteriorate
refrigerating efficiency ).
13
Correction
Turn the control to "COLD"(MAX) position.
Insert plug cord into outlet correctly.
Replace if overload relay is not conductive.
Correction
If voltage is below rated value, contact
utility company.
If starting voltage drops below - 10% of
rating, contact utility company and have
household wiring capacity increased.
Correction
Replace Compressor-evaporator unit.
Correction
Set control to "COLD" and continue
operation for over 20 minutes. If
temperature fails to drop, do following.
Replace thermostat.
(If thermostat is not faulty, compressor-
evaporator unti is in trouble).
Loosen door panle screws and correct
distortion of door.
Defrost before frost grows more than
10mm thick.
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