User Guide & Service Guide
USER GUIDE
u-line.com
Troubleshooting
u-line.com
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 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.
All models incorporate rigid foam insulated cabinets to
provide high thermal eciency 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 oors and paneled walls have a
tendency to reect 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.
BEFORE CALLING FOR SERVICE
TROUBLESHOOTING GUIDE
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:
NORMAL OPERATING SOUNDS
IF SERVICE IS REQUIRED
Troubleshooting
•  Evaporator: Refrigerant owing 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.
DANGER
!
Problem Possible Cause and Remedy
Interior Light 
Does Not 
Illuminate
If the unit is cooling, it may be in 
Sabbath mode.
Light Remains 
on When Door 
Is Closed.
Turn o light switch if equipped. 
Adjust light actuator bracket on bottom 
of door.
Unit Develops 
Frost on 
Internal 
Surfaces.
Ensure the door is closing and sealing 
properly. 
Unit Develops 
Condensation 
on External 
Surfaces.
The unit is exposed to excessive 
humidity. Moisture will dissipate as 
humidity levels decrease.
Product is Not 
Cold Enough
Air temperature does not indicate 
product temperature. See CHECKING 
PRODUCT TEMPERATURE below.
Adjust the temperature to a cooler set 
point.
Ensure unit is not located in excessive 
ambient temperatures or in direct 
sunlight.
Ensure the door is closing and sealing 
properly.
Ensure the interior light has not 
remained on too long.
Ensure nothing is blocking the front 
grille, found at the bottom of the unit.
Ensure the condenser coil is clean and 
free of any dirt or lint build-up.
23










