Troubleshooting - Randell 51000 Series Operator's Manual

This unit is designed to operate smoothly and efficiently if properly maintained. However, the following is a list of checks to make in
the event of a problem. Wiring diagrams are found at the end of this manual.
SYMPTOM
Unit does not run
Unit short cycles
Unit runs constantly
Unit not cold enough
Unit too cold
Drawer Issues
Unit noisy
Moisture around door or
frame
Ice in drain pain or water
in bottom of unit or floor
When in doubt, turn unit off and call for service and call for service at 888-944-7636.
POSSIBLE CAUSE
1. No power to unit
2. Temperature control turned off
3. Temperature control faulty
4. Compressor overheated
5. Condenser fan faulty
6. Overload protector faulty
7. Compressor relay faulty
8. Compressor faulty
1. Condenser coil dirty
2. Condenser fan faulty
3. Compressor faulty
4. Overload repeatedly tripping
1. Condenser coil dirty
2. Condenser fan faulty
1. Temperature control set too high
2. Temperature control faulty
3. Condenser coil dirty
4. Refrigerant leaking or contaminated
1. Temperature control set too low
2. Temperature control faulty
1. Drawer tracks backwards
2. Roller bearings loose
1. Compressor mountings loose or hardened
2. Condenser fan damaged or hitting fan shroud
1. Breaker strip faulty
2. Frame heater faulty
3. Temperature control set too low
1. Drain tube clogged
2. Unit not level

Troubleshooting

1. Plug in unit
2. Check temperature control
3. Test temperature control
4. Clean condenser coil
5. Service condenser fan
6. Test overload
7. Test relay
8. Call for service at 888-994-7636
1. Clean coil
2. Service fan and motor.
3. Call for service at 888-994-7636
4. Check outlet voltage
1. Clean coil
2. Service condenser motor
1. Adjust control to lower setting
2. Test control
3. Clean coil
4. Call for service at 888-994-7636
1. Adjust control to raise setting
2. Test control
1. Check installation of drawer track – page 12
2. Tighten bearings
1. Tighten or replace compressor mountings
2. Inspect condenser fan
1. Inspect strips
2. Call for service at 888-944-7636
3. Adjust control to raise setting
1. Clean drain
2. Adjust leveling feet
OM-51000 & 53000 SERIES
PROCEDURE
13