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Question About Aprilaire Thermostat 8463
My aprilaire 8400 series was installed yesterday. ...

My aprilaire 8400 series was installed yesterday. We set it at 74 and it did fine through the night. I left for a few hours this morning and found it set at 85..no one was home that did this. This happened once yesterday, too. Is there a problem with the thermostat?

Asked by Gail on 07/15/2013 0  Answer

ManualsOnline posted an answer 10 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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