USER GUIDE
Troubleshooting - Extended 1
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE •
SERVICE
Troubleshooting - Extended
SPECIFIC ERRORS & ISSUES
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. (Refer to Airflow/General
information Section of this manual)
Confirm condenser fan operation. (Refer to Airflow/General information
Section of this manual)
Compressor not operating
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, convect cool
models only
Refer to Convection Cooling Section of this manual. convect cool models
only
Frozen Product
Control set too cold
Refer to Adjusting Air Temperature Section of this manual.
Frost Buildup
Inside Unit
Door ajar or restricted from closing
Inspect/Repair door closure, adjust as needed.
Internal Lights
Not Working
Door switch misaligned or defective
Check light switch, wiring and actuator. Adjust as needed.
Door switch misaligned or defective
electronic control models only
Refer to Reed Switch Section of this manual.
electronic control models only
Noisy
Refrigeration tubing touching cabinet
Carefully reposition tubing.
Fan blade obstruction (wiring, foam
insulation, packaging material)
Remove obstruction.
Ice Buildup In
Drain Trough or
Drain Problem
Obstructed drain cup or tube
Clear as needed, test flow.
Kinked condensate drain line
Reroute condensate drain line and test flow.
Drain trough and cup misaligned
Trough is slotted for adjustment. Loosen retainers and adjust as needed.
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