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Old 07-20-2016, 03:26 PM   #1
FrankG's Avatar
Join Date: May 2016
Location: NW Ohio
Posts: 31
Heater & Air conditioner

I HAVE A 16 vengeance 29V with a Air conditioner and heater. It has a Dometic thermostats. This morning we turned the heater on for the first time 61 degree F. Heater ran just fine but the air conditioner fan came on also. Is this something I can fix?

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Old 07-20-2016, 04:08 PM   #2
Head Rambler
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 3,281
Lots of reports of this on the forum.
Cycle through the modes until you get to Fan and then +or- until it says Auto and that'll fix your problem.

If you leave the fan in Hi or Lo the A/C blower will run anytime the furnace runs.
It's designed that way for some reason.
Salem 29RKSS Pushing a 2500 Mega-Cab CTD!
Gotta go campin!
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air conditioner, heater

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