Ken for Model Number Sub-Zero 36" Built-In 650-SS-1HR "Service" light comes on every 48 to 96 hours. I have cleaned the condenser fins. The light is turned off by depressing two differenct buttons - 1 for 15 seconds and another for 10 seconds. The service company wants $350 minimum to fix the problem. We have a clean house with no pets and only two of us using the refrigerator. The unit is 11 years old. Is there a less expensive solution? The unit, otherwise seems to be operating properly, but when the service light is on the temperature seems too cold and occassionaly freezes a refrigerated area.
Answer Hello Ken, The problem could be a faulty thermistor or could be a bad control board that would be causing issue. Read More... Answered by AppliancePartsPros.com | Monday, January 28, 2013