USER GUIDE
Troubleshooting 2
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE •
SERVICE
TROUBLESHOOTING GUIDE
DANGER
!
ELECTROCUTION HAZARD. Never attempt to
repair or perform maintenance on the unit until
disconnecting the main electrical power.
Troubleshooting - What to check when problems occur:
CHECKING PRODUCT TEMPERATURE
To check the actual product temperature in the
unit.
1. Partially fill a plastic (nonbreakable) bottle with water.
2. Insert an accurate thermometer.
3. Tighten the bottle cap securely.
4. Place the bottle in the desired area for 24 hours.
5. Avoid opening the unit during the testing period.
6. After 24 hours, check the temperature of the water. If
required, adjust the temperature control in a small
increment (See CONTROL OPERATION).
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 Blackout
mode. (See OPERATING INSTRUCTIONS)
Interior Light
Does Not
Illuminate.
The light bulb may be defective.
(See MAINTENANCE)
If the unit is cooling it may be in Blackout
mode. (See OPERATING INSTRUCTIONS)
Light Remains
on When Door
is Closed.
For glass door models, press the light icon and
close the door. (See OPERATING
INSTRUCTIONS)
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
increase.
Digital Display
Functions, But
Unit Does Not
Cool.
Ensure the unit is not in ‘Showroom Mode’.
Press and hold the COOLER icon and
simultaneously within five seconds press the
LIGHT icon three times to change the display
as needed.
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.
Digital Display
Shows 1-16 or
99
A factory test mode may be enabled. Adjust
the temperature to 99 and press the LIGHT
icon. (See OPERATING INSTRUCTIONS)
Product is
Freezing.
Product in contact with the rear wall may
freeze, ensure no product is touching the rear
wall.
Adjust the temperature to a warmer set-point.
(See OPERATING INSTRUCTIONS)
Product is Not
Cold Enough.
Air temperature does not indicate product
temperature. See OPERATING INSTRUCTIONS
- Checking Product Temperature.
Adjust the temperate to a cooler set-point.
(See OPERATING INSTRUCTIONS)
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.
Problem
Possible Cause and Remedy
