17
Troubleshooting
BEFORE CALLING FOR SERVICE
If you think your Marvel 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 Marvel directly at
800.223.3900.
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.
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
Unit Develops
Frost on
Internal
Surfaces.
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.
Product Is
Freezing.
Because 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.
Installation Operation and Maintenance Instructions
Product is Not
Cold Enough.
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 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.
Causes which affect the internal temperatures of the
cabinet include:
•
Temperature setting.
•
Ambient temperature where installed.
•
Installation in direct sunlight or near a heat source.
•
The number of door openings and the time the door is
open.
•
Obstruction of front grille or condenser.
