Time to Troubleshoot the furnace
My Atwood furnace worked great when I tested it before buying the coach... I haven't tried to use it since then, but now that it's getting chilly I tried to fire it up, but the blower won't come on...
Forum Discussion
Chum lee wrote:
Zack: A shot in the dark. When my Atwwood 8500 series furnace wouldn't light, it first became a little flaky meaning over 6 months time it would work . . not work, . . . . work, . . not work, then not work at all. No fan, no heat no nothing, I took off the exterior cover and found that the ground connection {black wire to yellow wire) at the multi point connector where the coach power connects to the heater box melted/fried/failed. The black (10 gage) wire from the coach was fine but the yellow (14 gage) ground wire inside the heater box was fried for about 4 inches. I replaced all the yellow internal ground wires with new 10 gage wire. Now it works fine. Some engineer at Atwood decided that a 10 gage to 14 gage ground connection would be fine. It wasn't. DC power flows from negative to positive. I suspect that all Atwood furnaces wired from the factory this way will eventually fail. Mine is a low time 1999 model. Look inside your heater box. If the multi point connector is melted or fried, you may have this problem too. It's not in the troubleshooting guide.
The wiring diagram is in the manual which is helpful. Some one else already gave you the link.
Chum lee
I'll check this out tomorrow, but what exactly do you mean by "heater box"? Are you just talking about taking the cover off of the outside of the RV? Or actually taking apart the furnace?
Thanks
