Operator`s manual

unifiedbrands.net
Trouble Shooting Guide
NOTE: All service repairs to be performed by a qualified service agent.
All warranty repairs are to be performed by a Unified Brands authorized service
agent (ASA). Any warranty work performed by a non-ASA will not be honored by
Randell. A complete listing of current ASAs can be found on the Randell page of
our web site : www.unifiedbrands.net
SYMPTOM POSSIBLE CAUSE PROCEDURE
Unit doesn't run 1. No power to unit 1. Check power switch
2. Temperature control turned off 2. Check temperature control/probe
3. Temperature control faulty 3. Test temperature control/probe
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
Unit short cycles 1. Condenser coil / filter dirty 1. Clean coil/ filter
2. Condenser fan faulty 2. Service fan and motor.
3. Overload repeatedly tripping 3. Check outlet voltage
Unit runs constantly 1. Condenser coil/filter dirty 1. Clean coil/filter
2. Condenser fan faulty 2. Service condenser motor
Unit too cold
1. Temperature control set too
low 1. Adjust control to raise setting
2. Temperature control/probe
faulty 2. Test control/probe
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
Control Display
1. P1
2. HA
1. Check probe connection at
control
2. High Alarm. Check condenser coil
ALARM SIGNALLING