Troubleshooting Guide - Sub-Zero 648PRO User Manual

T R O U B L E S H O OT I N G
T R O U B L E S H O O T I N G
If your refrigerator or freezer is not operating
properly, use the following troubleshooting
guide before calling your Factory Authorized
Service Center. This guide will save you time
and trouble and may avoid the expense of a
service call.
SERVICE is illuminated in the exterior
temperature display
The microprocessor has sensed a problem
with the operating system. There may be
instructions in the exterior temperature
display to solve the problem. If not, call the
Sub-Zero Customer Service Department at
800-222-7820.
SERVICE is flashing in the exterior
temperature display
This happens when one or more of the
zones runs too long, or a temperature
sensor may be faulty. This could be from a
dirty condenser. If this occurs, clean the
condenser following the procedure outlined
on page 13. Turn the unit off with the
POWER key pad and then restart by
depressing the key pad again. If SERVICE is
still flashing, call the Sub-Zero Customer
Service Department at 800-222-7820.
Service and ice lights are both flashing
This occurs when the solenoid valve for
the ice maker is activated too long. Check
for excess water near the ice maker. If you
see excess water, turn off the water at the
shut-off valve and call for service. If there is
no excess water, turn the unit off and back
on to reset and see if this corrects the
problem. If the problem continues, call the
Sub-Zero Customer Service Department at
800-222-7820.
G U I D E
Refrigerator/Freezer is not running
Refrigerator/Freezer is warmer than usual
Refrigerator/Freezer runs for long periods
of time
Is there electrical power to the unit?
Is your home circuit breaker or fuse off?
Is your refrigerator/freezer control set to
"ON"?
Is the condenser area clean?
Has either door been left open for an
extended period? Be sure that food is not
obstructing proper door or drawer closing.
If unit has been off for short time frame and
unit is still not running, it may be in defrost
mode.
Wait 30 minutes and try to restart again.
Is your control set properly?
Is your condenser area clean?
Has the door been open for a long time?
Have you recently added a large amount of
food?
Is the condenser area clean?
On hot days and in warm room tempera-
tures, the motor runs longer.
Have the doors or drawers been open for a
long time?
Have you recently added a large amount of
food?
Has either a door or drawer been left open
accidentally? Be sure that food is not
obstructing door or drawer from closing.
There may be normal operation noises
related to refrigerant circulation, fan opera-
tion, ice maker operation, defrost cycle or
compressor operation.
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