There is a safety cutout on the evaporator that sometimes goes open circuit, stopping the heater coming on in defrost.If the compressor will not turn off, check the condenser is clean.and the fan working. next check the thermostat hasn't broken. Lastly, check the defrost timer.
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There is a safety cutout on the evaporator that sometimes goes open circuit, stopping the heater coming on in defrost.If the compressor will not turn off, check the condenser is clean.and the fan working. next check the thermostat hasn't broken. Lastly, check the defrost timer.