Jennifer for Model Number mtf1972hr Freezer is cold ,but don't freeze. runs constantly, without down times. We changed the de-frost thermastat and the run capacitor. Still runs constantly. The coils and thermastat were enclosed in thick ice. Can you tell me anything else we should try?
Answer Jennifer, If the evaporator coils are impacted with ice, 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, August 2, 2013