User Guide & Service Manual

USER GUIDE
Troubleshooting - Extended 2
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SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
TROUBLESHOOTING GUIDE
Concern Potential Causes Suggested Remedy
Not Cooling Compressor overheating Verify proper air flow through condenser (Refer to Airflow/General
Information Section).
Confirm condenser fan operation (Refer to Airflow/General Information
Section).
Confirm proper compressor operating voltage (Refer to Toggle/
Compressor Information Section).
Compressor not operating Confirm proper compressor operating voltage (Refer to Toggle/
Compressor Information Section to initiate power to the compressor).
Test overload and relay, replace as needed.
Compressor operating - no cooling Refer to System Diagnosis Guide.
Evaporator fan not operating Refer to Convection Cooling Section.
Frozen Product Ensure proper use of Quick Chill mode Refer to Control Operation Section.
Control set too cold Refer to Adjusting Temperature Settings Section
Review logged error codes Refer to Fault System Diagnosis Guide.
Thermistor failure Refer to Thermistor Failure Section
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 Use #19, Component Testing in Service Mode.
Thermistor failure Refer to Thermistor Failure Section.
Display Not
Working
Unit placed in Sabbath mode? Refer to Sabbath Mode Section.
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.
Unit set to Sabbath Mode. Refer to the Sabbath Mode Section.
Door switch misaligned or defective Refer to Reed Switch Section.
Noisy Refrigeration tubing touching cabinet Carefully reposition tubing.
Fan blade obstruction (wiring, foam insulation,
packaging material)
Remove obstruction.