U-Line Outdoor Series User Manual & Service Manual page 35

USER GUIDE
TROUBLESHOOTING GUIDE
Concern Potential Causes
Not Cooling Compressor overheating
Compressor not operating
Compressor operating - no cooling
Frozen Product Control set too cold
Thermistor failure
Frost Buildup Door Ajar or Restricted from Closing
Inside Unit
Thermistor failure
Display Not Display unplugged
Working
Display wiring broken or damaged
Interior Lights Not Door switch misaligned or defective
Working
Noisy Refrigeration tubing touching cabinet
Fan blade obstruction (wiring, foam
insulation, packaging material)
Troubleshooting Extended
Action
Verify proper air flow through condenser. Is condenser clean?
Confirm condenser fan operation.
Test overload and relay, replace as needed.
Refer to System Diagnosis Guide.
Adjust Set Point Temp accordingly.
Check Error Log in Service Mode, OHM thermistor.
Check door clearance to adjoining cabinetry. Check
distribution of product in unit.
OHM thermistor
Verify that both ends of the display wiring are firmly
connected.
Perform continuity test of wiring and replace as needed.
Check the function of reed switch and door magnet
adjustment.
Carefully reposition tubing.
Remove obstruction.
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