How To Turn On Furnace In Camper. Turn on the stove burner and observe the color of the flame. Check that the air intake and exhaust vents are clear.
Ensure that the ducts are attached to the furnace. If you see it in blue, it’s fine. I let it run for 3 to 4 minutes.
Step 3 clear the venting area on the furnace if there is insufficient heat or the furnace is working constantly.
If it’s yellow, you may need to replace it. Press pilot knob go to your furnace access panel and remove its cover. I am confused about lighting the furnace. It simply means the control board won’t allow the furnace to start.