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Old 04-30-2016, 03:48 PM   #1
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Why is my AC fan running when I turn my furnace on?

My ac fan is running, sucking in cold air. I need to run heat, but the fan wont shut off. This is happening on the furnace selection on my thermostat. Propane bottles full, heat comes out of the floor, but cool air is also being blown out of the ceiling vents.
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Old 04-30-2016, 03:49 PM   #2
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Go to the thermostat, select fan, set fan to auto.
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Old 04-30-2016, 03:54 PM   #3
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And its fixed. Major Duh on my part. Thank you!
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Old 04-30-2016, 03:59 PM   #4
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Cool, or heat that is.

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Old 04-30-2016, 05:09 PM   #5
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I'll second that........hey,,,,,
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Old 05-01-2016, 11:35 AM   #6
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Originally Posted by Ford Idaho View Post
Go to the thermostat, select fan, set fan to auto.
X2 Mine did the same thing and a repair shop said that it needed to be on fan/AUTO
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Old 05-01-2016, 11:50 AM   #7
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And just an FYI for you it is not sucking in cold are but it is moving the air around inside.
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Old 05-01-2016, 12:14 PM   #8
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Yes the intake and exhaust are an inch apart.
We run our a/c fan with the heat on to circulate the air.


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Old 05-01-2016, 01:01 PM   #9
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We had the same thing happen to us the first camp out with our new TT. I could not figure out what the heck was wrong. But someone told me very fast what to do. Love this forum
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Old 05-01-2016, 01:30 PM   #10
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Originally Posted by stevensmith2859 View Post
My ac fan is running, sucking in cold air. I need to run heat, but the fan wont shut off. This is happening on the furnace selection on my thermostat. Propane bottles full, heat comes out of the floor, but cool air is also being blown out of the ceiling vents.
Turn the fan to AUTO
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Old 05-01-2016, 05:13 PM   #11
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That did the trick, the fan needed to be on auto
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Old 05-01-2016, 10:24 PM   #12
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AC fan running with heat

I was told that the fan circulates heat that rises to the ceiling.
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Old 05-02-2016, 01:03 AM   #13
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I was told that the fan circulates heat that rises to the ceiling.
By whom?
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Old 05-02-2016, 02:56 AM   #14
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By whom?

I would say by "they". Common knowledge that heat rises, AC fan helps circulate that heat.


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Old 05-02-2016, 07:09 AM   #15
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I would say by "they". Common knowledge that heat rises, AC fan helps circulate that heat.


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Old 05-02-2016, 10:32 AM   #16
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By whom?
Dometic
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