Troubleshooting Extended - U-Line 1000 Series User Manual

USER GUIDE
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE •
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
Not Cooling Compressor overheating
Compressor not operating
Compressor operating - no cooling
Evaporator fan not operating, convect cool
models only
Frozen Product Control set too cold
Frost Buildup Inside Door ajar or restricted from closing
Unit
Internal Lights Not Door switch misaligned or defective
Working
Noisy Refrigeration tubing touching cabinet
Fan blade obstruction (wiring, foam
insulation, packaging material)
Ice Buildup In Drain Obstructed drain cup or tube
Trough or Drain
Problem
Kinked condensate drain line
Drain trough and cup misaligned
Suggested Remedy
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)
Test overload and relay, replace as needed.
Refer to Refrigeration System Diagnosis Guide Section of this
manual.
Refer to Convection Cooling Section of this manual. convect cool
models only
Refer to Adjusting Air Temperature Section of this manual.
Inspect/Repair door closure, adjust as needed.
Check light switch, wiring and acuator. Adjust as needed.
Carefully reposition tubing.
Remove obstruction.
Clear as needed, test flow.
Reroute condensate drain line and test flow.
Trough is slotted for adjustment. Loosen retainers and adjust as
needed.
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SERVICE
Troubleshooting - Extended 1