Thermostat and debug LED both go blank/dead - Appliance Repair Forum

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Thermostat and debug LED both go blank/dead Options Email this topic Watch this topic Print this topic » Normal Threaded
Model: XE80	Brand: -other-	Age: More than 10 years
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JMANBourg		#1 Posted : Thursday, December 5, 2013 10:10:31 PM(UTC)
Rank: Member Groups: Registered Joined: 10/7/2012(UTC) Posts: 1		I have a Totaline P374-1700 thermostat wired to a White Rodgers 50A65-843 Universal Integrated Furnace Control Unit on a Trane XE80 furnace. The Thermostat display randomly goes blank and the debug LED (that is normally flashing) is also blank. The thermostat has come back to life 3 times in the last 3 days, the heater will run for some time, again random how long, then the heater will go off and sometime later, the display will again go blank.


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