Atwood 8531-IV DCLP Furnace Not Working
I brought my camper to my, upper Michigan, hunting camp in early October, used the furnace all weekend and everything was fine. I returned a couple weeks later on a cold Friday night and the furnace would not come on. No fan. No spark. No ignition. Just a "click" up on the relay board. The next day the troubleshooting started and I failed to get it to work. I checked the fuse in the panel, replaced the board on the furnace itself. I just hauled it back home to Minnesota where I can troubleshoot it more effectively. I don't "think" it's the thermostat, but I will try putting the original manual thermostat back in. Years ago, I had upgraded the thermostat with a digital hunter thermostat conversion, using a process that I found posted on a forum somewhere. Many people did it successfully as I did as well.
When I set the thermostat, to call for heat, I hear a click, up in the relay board inside the AC enclosure, but the furnace will not start. I suspect the click is a relay engaging or trying to engage. I don't see the relay board available for sale anywhere.
I did a little trouble shooting with a service guy from the local RV place, in Escanaba, MI and we were pretty sure it was the board in the furnace. $170 part, installed, no change. Ouch.
My fear is that mice have chewed a wire(s) up in the ceiling. I can tell there was some mouse activity up there. No chewed wires that I can see, but I could hear one (or more) up there when I pulled it out of storage this summer. I can't see any relationship to the wires in the AC wiring harness to the wires entering the furnace to be able to check for continuity.
Looking for ideas on what else to try?
I attached a few pics...First 2 are the furnace model & furnace board, next 2 are the relay board, and the last is the wire harness from the relay board.
When I set the thermostat, to call for heat, I hear a click, up in the relay board inside the AC enclosure, but the furnace will not start. I suspect the click is a relay engaging or trying to engage. I don't see the relay board available for sale anywhere.
I did a little trouble shooting with a service guy from the local RV place, in Escanaba, MI and we were pretty sure it was the board in the furnace. $170 part, installed, no change. Ouch.
My fear is that mice have chewed a wire(s) up in the ceiling. I can tell there was some mouse activity up there. No chewed wires that I can see, but I could hear one (or more) up there when I pulled it out of storage this summer. I can't see any relationship to the wires in the AC wiring harness to the wires entering the furnace to be able to check for continuity.
Looking for ideas on what else to try?
I attached a few pics...First 2 are the furnace model & furnace board, next 2 are the relay board, and the last is the wire harness from the relay board.
