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Old 04-21-2019, 07:12 AM   #1
Bbeenhouwer
Junior Member
 
Join Date: Apr 2019
Posts: 2
Help with duo therm AC

Curious as to why our AC fan starts when furnace is on. Have Honeywell digital thermometer with only options for fan are on or auto.

Any reason why AC fan should start when furnace kicks on?

Hoping for not crazy detailed answers as I am not very handy with wiring and electric.

Thanks
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