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09-16-2022, 09:51 AM
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#1
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Junior Member
Join Date: Sep 2022
Location: Savannah
Posts: 4
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Furnace blower
We have a 2007 Laredo fifth wheel. This trip, when our AC comes on so does the furnace blower. No heat just fan. In a few minutes the fan will kick off, but immediately kick back on. It may do this 6 times in 10 minutes. Any one have any ideas? We're thinking new thermostat is needed because of possible wiring problem.
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09-16-2022, 11:15 AM
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#2
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,351
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Welcome to the forum 
What brand/model thermostat do you have? It could also be the control board in the A/C.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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09-16-2022, 12:42 PM
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#3
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Junior Member
Join Date: Sep 2022
Location: Savannah
Posts: 4
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Here are some pictures of the thermostat.
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09-16-2022, 12:43 PM
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#4
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Junior Member
Join Date: Sep 2022
Location: Savannah
Posts: 4
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What a mess!
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09-16-2022, 01:22 PM
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#5
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Senior Member
Join Date: Apr 2019
Location: Henniker
Posts: 2,174
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Usually in auto mode, that isn’t an issue. Given the age, I suspect your control board or thermostat might be due for an update
__________________
Rob & Amy
2019 Passport 240BH SL (for sale)
2024 Cougar 29BHL (Taking delivery 5/11/24)
2022 Ford F250 7.3L Godzilla Crew Cab FX4
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09-16-2022, 02:03 PM
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#6
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,351
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I would probably change the thermostat first since it’s cheaper. When you look for a new thermostat remember that RV’s use 12VDC not 24 like most residential.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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09-16-2022, 02:55 PM
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#7
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Senior Member
Join Date: Apr 2012
Location: Portland, OR
Posts: 4,223
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well you might give a Hunter a shot. Not sure where I found a post about using one as a replacement for the OEM, but it has been in our rig for about eight years. Works great with our Suburban Furnace and Coleman AC unit.
https://www.homedepot.com/p/Hunter-5...4157/205793179
__________________
Russ & Paula and Belle the Beagle.
2016 Ram Laramie 3500 DRW 14,000# GVWR (New TV)
2005 Copper Canyon 293 FWSLS 32’ GVWR 12,360
Visit and enjoy Oregon State Parks
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09-16-2022, 04:44 PM
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#8
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Junior Member
Join Date: Sep 2022
Location: Savannah
Posts: 4
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New A/C was installed in 2017, the year before we bought this camper.
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09-16-2022, 06:08 PM
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#9
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Senior Member
Join Date: Apr 2012
Location: Portland, OR
Posts: 4,223
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__________________
Russ & Paula and Belle the Beagle.
2016 Ram Laramie 3500 DRW 14,000# GVWR (New TV)
2005 Copper Canyon 293 FWSLS 32’ GVWR 12,360
Visit and enjoy Oregon State Parks
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