Randell PH120E2-220, Operator'S Manual

Page: 18 / 22

16 800-621-8560
Trouble Shooting Guide
SYMPTOM POSSIBLE CAUSE PROCEDURE
Unit doesn't run 1. No power to unit 1. Plug in unit
2. Temperature control turned off 2. Check temperature control
3. Temperature control faulty 3. Test temperature control
4. Compressor overheated 4. Clean condenser coil
5. Condenser fan faulty 5. Service condenser fan
6. Overload protector faulty 6. Test overload
7. Compressor relay faulty 7. Test relay
8. Compressor faulty 8. Call for service at 800-621-8561
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 800-621-8561
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
Unit not cold enough
1. Temperature 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 800-621-8561
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