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Question About Trane Heat Pump Thermostat # 3AAT80B1A1 H
red light flashing on thermostat, I have a trane X...

red light flashing on thermostat, I have a trane XL1200 heat pump. Model # TWX036C100A1 Serial # J29269743. Just started this, saturday october 29, temp that morning droped to 30 degrees, for first time this season. I suspect a sensor of some sort. System seems to operate normally inspite of the light flashing. Also, it only does this in the 7 am defrost cycle.

Asked by Tommy on 11/03/2011 0  Answer

ManualsOnline posted an answer 12 years, 11 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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