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07-20-2019, 11:55 PM
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#1
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Junior Member
Join Date: Oct 2011
Posts: 7
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Air Conditioner -- Fan doesn't shut off
Hello all. We have a 2012 Surveyor Select travel trailer. The air conditioner turns on and cools the camper down just fine. Problem is that, even when the thermostat is set on "auto" for the fan, it never shuts off. Was a major problem when we were up in the mountains and it was cold at night. Turned on the heater and the air conditioner fan was still blowing.
Is this as simple as replacing the thermostat?
Thanks
__________________
2012 Surveyor Select SV-294
2008 Ford F-250 Super Duty Crew Cab 6.8L V10
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07-21-2019, 05:53 AM
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#2
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Senior Member
Join Date: May 2018
Location: Odessa
Posts: 143
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Do you here the compresor kick on and off?
If so everything's working propperly.
2012 new to you ?
Fans always run unless it's a central a/c unit like in a house
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07-21-2019, 08:39 AM
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#3
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Senior Member
Join Date: Nov 2012
Location: Mount Laurel, New Jersey
Posts: 9,230
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Does it have high/low fan speed. If so try one of them on fan speed side then go to AC and see if it shuts down.
__________________
2012 SunSeeker 3100SS Toad-1962 Futura Average 100 + days camping
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07-21-2019, 10:44 AM
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#4
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Failure is my business
Join Date: Jun 2016
Location: Slaughter, LA
Posts: 562
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Quote:
Originally Posted by BigRedBill
Hello all. We have a 2012 Surveyor Select travel trailer. The air conditioner turns on and cools the camper down just fine. Problem is that, even when the thermostat is set on "auto" for the fan, it never shuts off. Was a major problem when we were up in the mountains and it was cold at night. Turned on the heater and the air conditioner fan was still blowing.
Is this as simple as replacing the thermostat?
Thanks
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One of my Machs digital controllers failed opposite that. The fan would stop but the compressor would stay running. I just swapped back to the analog wall controller and it's fine.
__________________
Current vehicle list: 17 RAM 3500 4x4 Cummins Aisin 4.10, 24 Cedar Creek 40CBK
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07-21-2019, 10:48 AM
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#5
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Site Team
Join Date: Oct 2014
Posts: 15,301
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AC is set to auto, what is the fan set at. It needs to be auto also.
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2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
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07-21-2019, 11:14 AM
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#6
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Senior Member
Join Date: Jan 2017
Location: Kalamazoo
Posts: 2,139
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I have the opposite problem. my a/c does not run on auto and will only work on high. I have an appointment for tue to have a tech look at it. dometic customer serive told me it prob a control board issue.
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07-21-2019, 02:10 PM
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#7
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Junior Member
Join Date: Oct 2011
Posts: 7
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Quote:
Originally Posted by Tblt44
Do you here the compresor kick on and off?
If so everything's working propperly.
2012 new to you ?
Fans always run unless it's a central a/c unit like in a house
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Not new to me. We bought it new and just started experiencing the problem. The compressor turns on -- blows out cold air. It just doesn't shut off. If you turn the heat on instead, the furnace blows hot air out of the floor vents and the air unit's fan is blowing cold air out of the ceiling.
__________________
2012 Surveyor Select SV-294
2008 Ford F-250 Super Duty Crew Cab 6.8L V10
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07-21-2019, 02:39 PM
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#8
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Senior Member
Join Date: Nov 2012
Location: Mount Laurel, New Jersey
Posts: 9,230
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Quote:
Originally Posted by BigRedBill
Not new to me. We bought it new and just started experiencing the problem. The compressor turns on -- blows out cold air. It just doesn't shut off. If you turn the heat on instead, the furnace blows hot air out of the floor vents and the air unit's fan is blowing cold air out of the ceiling.
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Set your thermostat to auto, then when you use the heat the ceiling fan won't run to circulate the air.
__________________
2012 SunSeeker 3100SS Toad-1962 Futura Average 100 + days camping
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07-21-2019, 04:40 PM
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#9
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Senior Member
Join Date: Jul 2015
Location: Texas Coastal Bend
Posts: 844
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Is that a factory thermostat? Many times folks upgrade to a residential style digital unit and the switchology is different, the common outcome can be pretty much what you described.
Some folks get around this by adding an extra toggle switch, but I find it easier just to change over to a Dometic/Coleman factory digital thermostat.
No idea if this applies to your case, but worth checking out.
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07-22-2019, 11:29 AM
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#10
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Senior Member
Join Date: May 2017
Location: Southeast
Posts: 1,047
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Has it always done this? Thermostat could be wired incorrectly, or the thermostat switching contacts are bad.
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2018 Forest River Rockwood Roo
24WS
2019 Ford SD F-350 SRW Lariat
Tow & Gooseneck Prep
FX4 Off Road (4X4)
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07-22-2019, 11:34 AM
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#11
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Site Team
Join Date: Oct 2014
Posts: 15,301
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See page 7 on Fan settings.
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2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
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