Urban350
Well-known member
I have a question about my furnace because I do not think this is right. My furnance comes on fan runs starts heating the coach then it hits the high limit switch, 160 degrees, burner shuts of fan keeps running. Burner cools to 120 and lights again and keeps going in this circle till the coach heats up. With the furnace running this way it takes about 5 hours for the trailer temp to raise 20F or 10C. I have air out of all the ducts and can't see any blockage without ripping the trailer apart and it is still winter here (snowing) and no dealer can look at till the end of May. My question is this the way the furnace should work???