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Trouble Shooting Guide
SYMPTOM POSSIBLE CAUSE PROCEDURE
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 doesn't run
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 short cycles
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 runs constantly
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. Insert cavity is over-filled 7. Load items to level indicated on sides of insert.
Unit not cold enough
1. Temperature control set too low 1. Adjust control to raise setting
2. Temperature control faulty 2. Test control
Unit too cold
1. Compressor mountings loose or hardened. 1. Tighten or replace compressor mountings
Unit noisy
2. Condenser fan damaged or hitting fan shroud 2. Inspect condenser fan
1. Drawer is open
1. Close the drawer the unit is designed to shut
down when drawer is open.
Control flashing “dA”
alarm
2. Drawer switch failed
2. Call for service at 800-621-8560
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