USER GUIDE
Troubleshooting 1
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE •
SERVICE
Troubleshooting
BEFORE CALLING FOR SERVICE
If you think your U-Line product is malfunctioning, read
the CONTROL OPERATION section to clearly understand
the function of the control.
If the problem persists, read the NORMAL OPERATING
SOUNDS and TROUBLESHOOTING GUIDE sections below
to help you quickly identify common problems and
possible causes and remedies. Most often, this will resolve
the problem without the need to call for service.
IF SERVICE IS REQUIRED
If you do not understand a troubleshooting remedy, or
your product needs service, contact U-Line Corporation
directly at +1.800.779.2547.
When you call, you will need your product Model and
Serial Numbers. This information appears on the Model
and Serial number plate located on the upper right or rear
wall of the interior of your product.
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 a
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.
• 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.
TROUBLESHOOTING GUIDE
DANGER
!
ELECTROCUTION HAZARD. Never attempt to
repair or perform maintenance on the unit
before disconnecting the main electrical power.
Troubleshooting - What to check when problems occur:
Problem
Possible Cause and Remedy
Digital Display
and Light Do Not
Work.
Ensure power is connected to the unit.
If the unit is cooling, it may be in Sabbath
mode.
Interior Light
Does Not
Illuminate.
If the unit is cooling, it may be in Sabbath
mode.
Light Remains
on When Door Is
Closed.
For glass door models, press the light icon
and close the door.
Check light actuator under door.
Unit Develops
Frost on Internal
Surfaces.
Frost on the rear wall is normal and will melt
during each off cycle.
If there is excessive build-up of 1/4" or
more, manually defrost the unit.
Ensure the door is closing and sealing
properly.
High ambient temperature and excessive
humidity can also produce frost.
Unit Develops
Condensation on
External
Surfaces.
The unit is exposed to excessive humidity.
Moisture will dissipate as humidity levels
decrease.
Digital Display
Functions, But
Unit Does Not
Cool.
Ensure the unit is not in “Showroom Mode.”
Momentarily unplug or interrupt power
supply to the unit.
Digital Display
Shows ER or E
Followed by a
Number.
E3 indicates the door may be opened too
long. Ensure the door is closing properly. For
other error codes contact U-Line Customer
Service.