3 year old refrigerator we use in a seasonal cabin. After running for about 15 hours it starts making a very loud ticking noise when the compressor is running. It seems to tick for a couple of hours each time. I called Magic Chef and they thought it was the defrost timer. Does that sound plausible?
Yes it is plausible for the defrost timer to develop a ticking noise. It could be when the timer gets to a certain point that the motor on it starts the ticking. Other than the compressor, and the fan motor, the timer is the only part that is a moving part. You will want to check to make sure that the fan is not hitting ice in the freezer compartment.
The portion around the fan in freezer compartment is frozen blocking air from lower section of refrigerator.
Answer Hello Alvin. 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