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Isotempâ GP & FMS Refrigeration
Trouble Shooting Table
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.
Symptom
Does Not Run
Runs Continuously
Clicking Sound
Insufficient Cooling
Probable Cause
Unit Unplugged
Blown fuse or
tripped circuit
breaker
Frost buildup on
refrigeration coils
The compressor is
equipped with a
thermal protector.
This device shuts off
the compressor when
it becomes too hot.
A clicking sound
occurring about
every 30 seconds
indicates this
protector is working
Thermostat set to
high
Unit frosted
6 of 8
Page
Action
Plug in Unit
Check fuse or
circuit breaker at
breaker box
Defrost unit
Uplug unit for 1
hr. Plug in and try
running again. If
the unit doesn't
begin to run, call
for service.
Reduce thermostat
setting
Defrost unit
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