Fisher Scientific Isotemp 150, Safety Information Manual

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This table is intended to assist in resolving user-correctable Refrigerator problems by relating symptoms to
their likely causes. If service beyond the scope of this table is required, contact your nearest Fisher Scientific
Service Office.
Troubleshooting
Symptom Probable Cause Action
Does Not Run Unit Unplugged Plug in Unit
Blown fuse or tripped circuit Check fuse or circuit breaker at
breaker breaker box
Runs Continuously Frost buildup on refrigeration coils Defrost unit
Clicking Sound The compressor is equipped Disconnect power. Allow refrigeration
with a thermal protector. system time to equalize, then try
This device shuts off the again. If problem persists, call for
compressor when it service.
becomes too hot. A clicking
sound occurring about
every 30 seconds indicates
this protector is working
Insufficient Cooling Thermostat set too high Reduce thermostat setting
Unit frosted Defrost unit