How to test a defrost thermostat that has 4 wires - Appliance Repair Forum

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	Brand: GE	Age: 5 - 10 years
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appliance13		#1 Posted : Wednesday, June 4, 2014 3:20:27 PM(UTC)
Rank: Member Groups: Registered Joined: 11/23/2013(UTC) Posts: 10		Sorry but I have never tested a defrost thermostat with 4 wires so I appreciate if someone can help me on how to test this. Thanks in advance!


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appliance13		#2 Posted : Wednesday, June 11, 2014 8:42:28 AM(UTC)
Rank: Member Groups: Registered Joined: 11/23/2013(UTC) Posts: 10		So all theses Techs here and no one can answer this one :(


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richappy		#3 Posted : Wednesday, June 11, 2014 3:30:09 PM(UTC)
Rank: Advanced Member Groups: Senior Expert Joined: 9/10/2007(UTC) Posts: 9,586 Was thanked: 2 time(s) in 2 post(s)		That is a sensor and not a thermostat.


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appliance13		#4 Posted : Thursday, June 12, 2014 6:54:52 AM(UTC)
Rank: Member Groups: Registered Joined: 11/23/2013(UTC) Posts: 10		Actually it is a defrost thermostat. Still no one seems to have ever tested these before which really amazes me. Guess I am stuck GE WR50X10039 Defrost Thermostat - AppliancePartsPros.com


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richappy		#5 Posted : Thursday, June 12, 2014 1:43:00 PM(UTC)
Rank: Advanced Member Groups: Senior Expert Joined: 9/10/2007(UTC) Posts: 9,586 Was thanked: 2 time(s) in 2 post(s)		This item may have a thermal switch and an internal bias heater, very strange. Two terminals should be shorted at freezing temps, the other two should show resistance.


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