Owner's Manual

Troubleshooting Guide 14
Troubleshooting
If your undercounter unit is not operating properly,
use the following troubleshooting guide before calling
Sub-Zero factory certified service. This guide will save you
time and trouble and may help you avoid the expense of
a service call.
Undercounter unit is not operating.
• Is the unit turned on? Refer to electronic controls on
page 7.
• Is there electrical power to the unit? Check the house-
hold fuse or circuit breaker to see if it has been blown
or tripped. A power outage may also have caused a
disruption in service.
• 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 operating, it may be in defrost
mode. Wait 30 minutes and try to restart again.
‘SERVICE’ is flashing in the LCD display.
• This may indicate that the condenser needs cleaning.
Clean the condenser area as outlined on page 13.
• This happens when the unit runs too long. A
temperature sensor may be faulty. If this occurs, tur n
the unit off with the POWER key pad and then restart
by pressing the key pad again. If ‘SERVICE’ is still
flashing, call Sub-Zero customer care at 800-222-7820.
Undercounter unit is warmer than usual.
• Is the temperature set properly?
• Is the condenser area clean?
• Are the airflow vents in the kickplate blocked?
• 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 temperatures, the
compressor runs longer.
• There may be normal operation noises related to refrig-
erant circulation, fan operation, ice maker operation,
defrost cycle or compressor operation.
Undercounter unit is frosted up.
• Has the door been left open for an extended period?
Be sure 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 oper-
ation, defrost cycle or compressor operation. Noises
may be more noticeable when the door is open.