My Ammana Freezer is not defrosting. I need to figure out if it is the Defrost Thermostat Defrost Timer or the heating element. What should I do first?

Check your defrost timer also make sure its turning also there's a thermostat and heating element that defrost the ice at given cycles

There are three parts to all defrost systems.
1. Defrost Heater2. Defrost Timer3. Defrost Thermostat
Without a model number I could not look up a diagram or part numbers. I very seldom see a bad heating element. Most common is a bad defrost timer, second most common is the defrost thermostat.

remove the rear cover inside the freezer if it has a lot of frost on it,then the evaporator coil is frozen up and you cant blow cold air over or thru a solid block of ice,defrost it,then check the defrost heating element,defrost thermostat and timer or defrost circuitry for no power or defective components,you can use a hand held hair dryer to defrost it quicker

Hi, The defrost heater may not be working properly (timer stuck, heating element burned out, bad defrost thermostat,etc.). The unit should go into defrost mode about every 6-8 hours typically and last about 30 minutes (depending on model of freezer). During defrost cycles the compressor and fan do not run (don't want to keep cooling while trying to defrost). Once defrost is over, the fan and compressor get power again.
Take care

Hi, The defrost heater may not be working properly (timer stuck, heating element burned out, bad defrost thermostat,etc.). The unit should go into defrost mode about every 6-8 hours typically and last about 30 minutes (depending on model of freezer). During defrost cycles the compressor and fan do not run (don't want to keep cooling while trying to defrost). Once defrost is over, the fan and compressor get power again.
Take care

If freezer is icing up, you might have a defrost problem. Frost free models have a heating element that is controlled by a timer to automatically defrost ice, defrost timer turns on defrost heating element every 12 hours to melt ice in freezer and allow good air flow.
You can test defrost element with an ohm meter(located inside freezer coils-will have two wires going to a plug connection), if OK replace defrost timer (located in various places depending on make and model
thumbs up

you might have a defrost problem. Frost free models have a heating element that is controlled by a timer to automatically defrost ice, defrost timer turns on defrost heating element every 12 hours to melt ice in freezer and allow good air flow.
You can test defrost element with an ohm meter(located inside freezer coils-will have two wires going to a plug connection), if OK replace defrost timer (located in various places depending on make and model

If freezer is icing up, you might have a defrost problem. Frost free models have a heating element that is controlled by a timer to automatically defrost ice, defrost timer turns on defrost heating element every 12 hours to melt ice in freezer and allow good air flow.
You can test defrost element with an ohm meter(located inside freezer coils-will have two wires going to a plug connection), if OK replace defrost timer (located in various places depending on make and model

You have a defrost problem. It means you have 3 parts that can be involve ( timer, defrost thermostat, element) most of the time it's the timer. Hope it was helpful. :)

Francois

send me the model number and ill take you through it step by step hold my rating till we are done you have a defrost problem its going to need either a defrost timer a defrost thermostat or the heating element