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Old 10-13-2021, 09:04 AM   #18
sourdough
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Join Date: Feb 2014
Location: W. Texas
Posts: 17,695
Quote:
Originally Posted by Bapower427 View Post
My Dometic furnace in my trailer was short cycling amd blowing cold air for 30 seconds. I removed and cleaned the sail switch. Now it turns on and lights but it shuts down after about a minute or two. I have heat but it doesn’t turn on with the thermostat set amd won’t stay running. Any suggestions on what it could be without chasing the mouse on this unit

If you go to the User CP in the upper left corner of the page and fill in your signature with the year, make and model of your trailer and tow vehicle it makes it immensely easier to offer answers and suggestions.

If your furnace starts, blows and heats then shuts down I would look at the control board OR it could be running long enough to get the exhaust hot enough to trip the high temp switch because of some kind of exhaust blockage. Did that once by putting a "bug screen" over the exhaust.
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Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
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