U-Line ULN-75FB-00 User Manual

U-Line Service 12
Troubleshooting
Troubleshooting Guide
CAUTION
!
Never attempt to repair or perform maintenance on the unit until the main electrical power has been disconnected.
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.
Review logged error codes 
electronic control models only
Refer to Fault System Diagnosis Guide Section of this
manual. electronic control models only
Thermistor failure 
electronic control models only
Refer to Thermistor Failure Section of this manual.
electronic control models only
Frost Buildup Inside Unit Door ajar or restricted from closing Inspect/Repair door closure, adjust as needed.
Display Not Working Unit placed in Sabbath mode
electronic control models only
Refer to Sabbath Mode Section of this manual.
electronic control models only
Display unplugged 
electronic control models only
Verify that both ends of the display wiring are firmly
connected. electronic control models only
Display wiring broken or damaged
electronic control models only
Perform continuity test of wiring and replace as needed.
electronic control models only
Internal Lights Not Working Door switch misaligned or defective Check light switch, wiring and acuator. 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.

U-Line ULN-75FB-00 Specifications

General

Brand	U-Line
Model	ULN-75FB-00
Category	Refrigerator
Language	English