I own an Aprilaire Electronic Thermostat 8355, while in the heating position my unit turned off. In two days my unit still will not turn on and the display panel shows along with the programmed numbers a sign of -AC. What's going on and what does -AC mean?

Asked by Markos on 03/07/2012 1  Answer

ManualsOnline posted an answer 12 years, 8 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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