The heater element or defrost thermostat has probably gone bad. Remove the service panel and look for ice
See the heater? Looks like it is bad. Attached to it is a defrost thermodisc. When the defrost thermostat (terminator)
gets to 50f it shuts off power to the heater. So check those. If both turn out to be ok then you probably have a bad
adc board. Manuals are
HERE
If you need further help, reach me via phone at
https://www.6ya.com/expert/dan_73bbd84fe1d95b61
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