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Old 08-30-2019, 08:40 AM   #1
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Join Date: Apr 2014
Location: South Carolina
Posts: 23
Honeywell Thermostat Upgrade

I have a 2015 Sunset Trail 270BH with a Coleman Mach thermostat that I have not been happy with. I have an extra Honeywell thermostat that I took out of our house that I want to install in the camper. I have taken the Coleman of the wall and am a little confused with the wiring. I am aware that I will lose the ability to have the two speed fan but we only use it in the high speed so it doesn't matter to me. Has anyone had success with this upgrade and share and wiring diagrams or tips? Also here is a picture of the Honeywell wiring block.
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Old 08-30-2019, 09:04 AM   #2
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Join Date: Apr 2006
Location: Oak Harbor, WA
Posts: 2,013
Granted, your rig is newer, but when I did the Hunter thermostat upgrade years ago, the two speed feature was maintained. I had to add a small micro stitch to the side of the case to enable high or low speed but that was pretty easy to do. You might take a look at the past posts for "Hunter Thermostat"upgrade. It was popular around the 2007/8 timeframe.
Stan and Terri
Oak Harbor, WA
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Old 09-26-2019, 07:01 PM   #3
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Join Date: Jul 2018
Location: Minnesota
Posts: 101
Since no one has really addressed your question, I'll chime in. RV thermostats run on 12 volts, residential use a 24 volt transformer.
To avoid issues, I would stick with an RV thermostat.
Why not just replace the thermostat with the same one? I did that, and have had no further issues.
Doug and Patience and Shelby the mutt
2015 Crossroads Sunset Trail Reserve ST26RB
2013 Ford F-150 3.5 EcoBoost XLT Supercab 4x4
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