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USER GUIDE
Troubleshooting - Extended 1
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
Troubleshooting - Extended
CAUTION
!
Never attempt to repair or perform maintenance
on the unit until the main electrical power has
been disconnected from the unit.
TROUBLESHOOTING GUIDE
Concern Potential Causes Suggested Remedy
Not Cooling Compressor overheating Verify proper air flow through condenser. Is condenser clean?
Confirm condenser fan operation.
Confirm proper compressor operating voltage.
Compressor not operating Confirm proper compressor operating voltage.
Test overload and relay, replace as needed.
Compressor operating - no cooling Refer to System Diagnosis Guide.
Evaporator fan not operating Test fan.
Frozen Product Control set too cold Adjust Set Point Temp accordingly.
Thermistor failureOHM thermistor.
Frost Buildup
Inside Unit
Door Ajar or Restricted from Closing Check door clearance to adjoining cabinetry. Check distribution of
product in unit.
Evaporator fan not operating Test fan.
Thermistor failureOHM thermistor.
Noisy Refrigeration tubing touching cabinet Carefully reposition tubing.
Fan blade obstruction (wiring, foam
insulation, packaging material)
Remove obstruction.
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