Troubleshooting Extended - U-Line Captain 1000 Series User Manual & Service Manual

USER GUIDE
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE •
Troubleshooting - Extended
NORMAL OPERATING SOUNDS
All models incorporate rigid foam insulated cabinets to
provide high thermal efficiency and maximum sound
reduction for its internal working components. Despite this
technology, your model may make sounds that are
unfamiliar.
Normal operating sounds may be more noticeable because
of the unit's environment. Hard surfaces such as cabinets,
wood, vinyl or tiled floors and paneled walls have a
tendency to reflect normal appliance operating noises.
Listed below are common refrigeration components with
brief description of the normal operating sounds they
make. NOTE: Your product may not contain all the
components listed.
• Compressor: The compressor makes a hum or pulsing
sound that may be heard when it operates.
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
• Evaporator: Refrigerant flowing through an evaporator
may sound like boiling liquid.
• Condenser Fan: Air moving through a condenser may
be heard.
• Automatic Defrost Drain Pan: Water may be heard
dripping or running into the drain pan when the unit is
in the defrost cycle.
Specific Errors and Issues
!
CAUTION
Never attempt to repair or perform maintenance
on the unit until the main electrical power has
been disconnected from the unit.
Action
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