Sub-Zero UC-24C Undercounter Use & Care Guide - Page 14

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 household 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, turn 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 refrigerant 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 operation, defrost cycle or compressor operation. Noises may be more noticeable when the door is open.