Question about Refrigerators
Bottom freezer evaporator fan jams in ice. condesate drain not plugged. takes about 2 weeks to freeze up. heater element has continuity . no wiring diagram handy . possible defrost timer problem ??????????
Could be that, or it could be the temperature sensor on the evaporator - if that goes, then as soon as the freezer starts a defrost cycle, it will think it's got the evaporator hot enough and will start cooling again.
Suggest you let the freezer thaw out then, with a voltmeter connected across the terminals on the board which connect to the sensor, turn the freezer on and see if the sensor reacts sensibly to the evaporator cooling down. It's usually done with a thermistor, but just for the moment, I can't remember whether it's usually a PTC or an NTC.
That way, if it is the sensor, you'll be spared the expense of replacing a serviceable pcb.
Posted on Apr 13, 2008
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