14 | Troubleshooting
Isotemp
Refrigerators and Refrigerator-Freezers
Troubleshooting
In the event that your unit is not operating properly, check the
following before calling for service assistance. This may save
you the cost of unnecessary service calls.
Symptom
Possible cause of Problem
Unit not operating.
Make certain that the unit is connected to a grounded outlet.
Make certain that temperature control knob is ON.
Check that circuit breaker is not tripped or fuse is not blown.
Unit runs continuously.
Make certain that there is no heavy frost accumulation. If there is, defrost unit.
Look at condenser to see if there is a layer of dust or lint. Clean if required with a dry
brush or vacuum.
A leak around the door gasket will allow cold air to escape. This causes unit to work
harder than necessary to maintain cold temperatures. Re-seat or replace gasket if worn.
If you have temperature set too cold, this may cause unit to run continuously. Check
optimum running temperature.
Is the ambient air over 43°C (109°F), or the units located close to heat sources? If
possible, move to a different location.
An unusually high frequency of door openings and closings can increase operating load.
Unit will stabilize as these are decreased.
Noise problems.
This can be caused by contents of unit being set too close and rattling against each
other.
Rearrange contents as needed. Hissing or gurgling noise is caused by refrigerating fluid
circulating and is normal.
Noise can result if unit is not level on floor. Check with level.
Fan noise: normal airflow can cause this, not a problem.
