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Troubleshooting
Troubleshooting
CAUTION
!
Never attempt to repair or perform maintenance on the unit until the main electrical power has been disconnected from
the unit.
Concern
Potential Causes
Suggested Remedy
Not Cooling
Compressor overheating
Verify proper air flow through condenser (Refer to Airflow/General
Information Section of this manual).
Confirm condenser fan operation (Refer to Airflow/General
Information Section of this manual).
Confirm proper compressor operating voltage (Refer to Relay Toggle/
General Information Section of this manual to initiate power to the
compressor).
Compressor not operating
Confirm proper compressor operating voltage (Refer to Relay Toggle/
General Information Section of this manual to initiate power to the
compressor).
Test overload and relay, replace as needed.
Compressor operating - no cooling
Refer to Refrigeration System Diagnosis Guide Section of this manual.
Evaporator fan not operating
Refer to Convection Cooling Section of this manual.
Frozen Product
Ensure proper use of Quick Chill mode
Refer to Quick Chill Section of this manual.
Control set too cold
Refer to Adjusting Temperature Settings Section of this manual.
Review logged error codes
Refer to Fault System Diagnosis Guide Section of this manual.
Thermistor failure
Refer to Thermistor Failure Section of this manual.
Frost Buildup
Inside Unit
Door Ajar or Restricted from Closing
Refer to All Errors Section of this manual to read errors such as Door
Open 5M.
Evaporator fan not operating
Refer to Convection Cooling Section of this manual.
Thermistor failure
Refer to Thermistor Failure Section of this manual.
Display Not
Working
Unit placed in Sabbath mode
Refer to Sabbath Mode Section of this manual.
Display unplugged
Verify that both ends of the display wiring are firmly connected.
Display wiring broken or damaged
Perform continuity test of wiring and replace as needed.
Internal Lights Not
Working
Control Setting
Refer to the Interior Lighting Section of this manual.
Unit set to Sabbath Mode. Refer to the Sabbath Mode Section of this
manual.
Door switch misaligned or defective
Refer to Reed Switch Section of this manual.
Noisy
Refrigeration tubing touching cabinet
Carefully reposition tubing.
Fan blade obstruction (wiring, foam insulation,
packaging material)
Remove obstruction.
