Troubleshooting
Explosion-Proof & FMS Refrigerator-Freezers
Installation and Operation Manual
15
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 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 the 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 43ºC (109ºF), 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.
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