Steve N for Model Number SCD22TBW I have an amada SCD22TBW model P1303511W. When it works, it works fine for a few days, then doesn't work anymore. The cooler isn't cold enough and I notice that the freezer coils are frosted/covered with ice. Sometimes, I unplugged the unit for a few hours and plugged it back and it would work again for a few days. I notice when it doesn't work, the ice is melting and dripping down. I am not sure it is the thermostat or the timer, or the fan that is bad. Also, when I checked the air flow in the cooler I don't feel that the air is blowing. Thanks for you help.
Answer Steve, With the evaporator frosting up you will need to test the defrost heater and the defrost thermostat. They should read closed for continuity when cold. You can test this with a multi-meter TJMA-DMT3. I will include a link at the end to assist you how to use the multi-meter if needed. If both parts are good, you will need to replace the defrost timer. Once the problem is repaired, you will need to thaw out the ice on the coils before the unit will operate properly. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html Read More... Answered by AppliancePartsPros.com | Friday, October 24, 2014