Picked up 17 A in Nov. and have been heating the unit with a small portable heater, but may need the furnace on the next trip. I can't get it to fire- the blower seems to be running fine, and gas is getting to the other appliances. Does anyone know how to access the furnace and what the most simple trouble shooting steps would be?
I remember testing the unit at the factory, and it worked then.
Your thermostat should be manual. On the top left is the on and off switch. Move the switch to the right set temp about 65 or 70. Do you have any compressed air? Blow air into the exhaust tube on the outside of the trailer. After that then try it again.
Last resort read the book.
Spider webs can block the flow of gas. The ones we can't see. I would blow lots of air in the exhaust.
Last fall a camper with a Bigfoot was having the same problem, we got a can of air and blew it in the exhaust and then it worked.