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Old 06-28-2012, 04:12 PM   #1
1 Rivet Member
Renton , Washington
Join Date: May 2009
Posts: 8
AC won't shut off at Thermostat


Currently in the hot desert and AC is cooling but won't cut off at the Thermostat. Until now I would shut it off and open the vents. Now if I leave
the AC stays on which is a waste and wear and tear on a possibly 40 year old unit.
I disconnected all the Thermostat wires while it was running and it stayed running. If I disconnect the AC at the hook up it shuts on and off at the breaker.
It's very Hot out here and want to be careful.
Would love some insight into this.


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Old 06-28-2012, 04:37 PM   #2
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2017 26' Flying Cloud
1976 Argosy 28
Alamo Heights , Texas
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Your trailer from the '70s has a wall thermostat for the AC? My '75 just has controls on the AC unit itself, the wall thermostat only controls the furnace.


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Old 06-28-2012, 04:50 PM   #3
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2012 25' FB Eddie Bauer
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Virginia Beach , Virginia
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I agree with DKB. A/C units weren't integrated into one thermometer with the furnace until fairly recently - and even then it was a feature offered on bigger Airstreams only.

I had a 2005 22ft FB CCD that had an air conditioner with the controls ON the side of the overhead A/C unit - and a separate thermometer for the furnace. When I moved up to a 25ft unit, I got the thermostatically controlled air conditioner.

Sometimes it's just the smallest things that confuse us. Don't feel bad about asking, there is a lot to learn. Welcome to the wonderful world or RV's and Airstreams.

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Old 06-28-2012, 06:22 PM   #4
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1991 34' Excella
Princeton , New Jersey
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As noted above your thermostat and on off switch are on the AC in on the control panel of the AC.

If you are leaving for several hours I would leave the AC running as it will take hours to recover once you return. Running will not harm the unit.
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1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

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