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TROUBLESHOOTING
If your Undercounter unit is not operating
properly, use the following troubleshooting
g
uide before calling your Sub-Zero authorized
service center. This guide will save you time
and trouble and may help you avoid the
e
xpense of a service call.
SERVICE is flashing in the LCD display
This may indicate that the condenser needs
cleaning. Follow the Condenser Cleaning
procedure outlined on page 13.
This happens when the unit runs too long.
A temperature sensor may be faulty. If this
occurs, turn the unit off with the
UNIT
ON/OFF
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.
Undercounter unit is not operating
Is there electrical power to the unit?
Is the home circuit breaker or fuse off?
Is the condenser area clean?
Has the door been left open for an
extended period? Be sure that food is not
obstructing proper door closing.
If the unit is still not running, it may be in
defr
ost mode.
Wait 30 minutes and try to restart again.
Undercounter unit is warmer than usual
Is the control set properly?
Is the temperature set properly?
Is the condenser area clean?
Has the door been left open for an
extended period? Be sure that food is not
obstructing proper door closing.
Has a large amount of food been added
recently?
Undercounter unit runs for long periods of
time
Is the condenser area clean?
Has the door been left open for an
extended period? Be sure that food is not
obstructing proper door closing.
Has a large amount of food been added
recently?
On hot days and in warm room tempera-
tures, the motor runs longer.
There may be normal operation noises
related to refrigerant circulation, fan opera-
tion, ice maker operation, defrost cycle or
compressor operation.
Undercounter unit is frosted up
Has the door been left open for an
extended period? Be sur
e that food is not
obstructing proper door closing.
Is the door closing and sealing properly?
Contact your dealer if the door is not
adjusted properly.
You hear unusual noises
These noises may be normal operating
sounds related to refrigerant circulation, fan
operation, ice maker operation, defr
ost
cycle or compressor operation. Noises may
be more noticeable when the door is open.
TROUBLESHOOTING GUIDE