20
888-994-7636
Trouble Shooting Guide
SYMPTOM
POSSIBLE CAUSE
PROCEDURE
Unit doesn't run
1. No power to unit
1. Plug in unit
2. Power switch in OFF position
2. Switch power switch to ON
3. Temperature control turned off
3. Check temperature control
4. Temperature control faulty
4. Test temperature control
5. Compressor overheated
5. Clean condenser coil
6. Condenser fan faulty
6. Service condenser fan
7. Overload protector faulty
7. Test overload
8. Compressor relay faulty
8. Test relay
9. Drawer switch not engaged
9. Test drawer switch
10. Compressor faulty
10 Call for service at
800-621-8560
Unit short cycles
1. Condenser coil dirty
1. Clean coil
2. Condenser fan faulty
2. Service fan and motor.
3. Compressor faulty
3. Call for service at
800-621-8560
4. Overload repeatedly tripping
4. Check outlet voltage
Unit runs constantly
1. Condenser coil dirty
1. Clean coil
2. Condenser fan faulty
2. Service condenser motor
3. Room ambient too high
3. Reduce room temp to 75F
4. Room humidity too high
4. Set room lower
Unit not cold enough
1. Temp control set too high
1. Adjust control to lower setting
2. Temperature control faulty
2. Test control
3. Condenser coil dirty
3. Clean coil
4. Refrigerant leaking or
contaminated
4. Call for service at
800-621-8560
5. Room ambient too high
5. Reduce room temp to 75F
6. Room humidity too high
6. Set room lower
7. Display area is over-filled
7. Remove items to load level
To 2” below sides and front
Unit too cold
1. Temperature control set too low
1. Adjust control to raise setting
2. Temperature control faulty
2. Test control
Unit noisy
1. Compressor mountings loose
or hardened.
1. Tighten or replace compressor
mountings
2. Condenser fan damaged
or hitting fan shroud
2. Inspect condenser fan
Summary of Contents for Randell 2127AC
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