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RandyH · 02-10-2021, 07:28 PM

We have a 2020 3121 with dometic furnace. I turn the heat on and the fan runs the you can hear the burner light. It blows warm air for about 3-4 min then shuts off. It’s about 30 degrees outside. Why is my heat not working?

02-10-2021, 07:28 PM	#1
RandyH Established Member Join Date: Jul 2020 Location: Des Arc Posts: 18 M.O.C. #26605	Help it’s cold We have a 2020 3121 with dometic furnace. I turn the heat on and the fan runs the you can hear the burner light. It blows warm air for about 3-4 min then shuts off. It’s about 30 degrees outside. Why is my heat not working?