Furnace Burner Cycling at startup
My 2016 Montana High Country has an Atwood/Dometic furnace, model AFMD35131-A. Whenever I turn the furnace on (or it comes on based upon the thermostat setting), the burner will cycle on and off seve...
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I agree it sounds like it is cycling against the high limit switch.
Probably need to add one or two additional ducts to get more airflow... unless you can repair the existing ducts to flow much better.
Mine did this for 8 years. I had tried to open the collapsed and poorly installed ducts for some time. Finally gave in and added two more 4" round ducts through the cabinet. Works perfect and tons more heat.
Probably need to add one or two additional ducts to get more airflow... unless you can repair the existing ducts to flow much better.
Mine did this for 8 years. I had tried to open the collapsed and poorly installed ducts for some time. Finally gave in and added two more 4" round ducts through the cabinet. Works perfect and tons more heat.
