My heat pump is not working on this cold day. I noticed the letters "AC" on the Aprilaire thermostat (Model #8355). What does the "AC" mean and is it preventing the heat pump from turning on?

Asked by wgreen4 on 03/21/2009 1  Answer

ManualsOnline posted an answer 15 years, 6 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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