The coil and the back panel of the freezer freeze over with ice causing a air flow problem I don't know if the defrost heater comes on. I defrost the unit and three days later it is frosted over again. The thermostat control that is attached to the coil in the rear of the freezer compartment looks like water or ice has entered the control and pushed the top of the control out . This could be causing the refrig to run constantly but how can I know if the defrost heater is coming on.
ANSWER Hello John. It sounds like you may have a defrost problem with the unit. Check and see if there is any frost build up on the back wall of the freezer. If so, 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
Answered by AppliancePartsPros.com | Friday, November 02, 2012