Atwood Furnace problem solution..At Last

[MConnelly]

I have been playing with the Attwood furnace on my '09 403 for almost a year.
Last night is was 18 degrees and the furnace worked, but only when I restarted the furnace by turning it of and on when the rig needed to be warmed up. Makes for a terrible night's sleep. (sometimes the furnace would regulate just fine for a few hours and then go off and stay off.)
This morning I took the control board out, cleaned all the spade connectors and generally looked over the whole thing.
Put it back together and left for the day. When I turned the furnace back on it would not turn back on. I hit the reset and the fan came on but no propane.
After several restarts I began to look for more issues than I had before I "fixed" it earlier that morning.


Remember when we used to check our cars ignition wires at night because we could see them leaking voltage? (Just dated my self. Crap)
As soon As I heard the igniter click I noticed an arc on the primary wire going to the gas valve solenoid. Easy fix, replace the wire. But the bloody thing still would not fire.
I re-checked all the spade connectors and while doing so the damned thing ignited and ran just fine. Hmm. Loose connection somewhere besides the spade connectors? Yep, you bet there was. On the blue line that comes off of the relay switch there was one of those absolutely useless, crimp on "T connector with the wire going to the circuit board "Teed" into it. God I hate those crimp on connectors. Every time I pushed or pulled on that connection the heater cut in and out. I cut the crimp connector out of the line and soldered the connection.
For the past two hours the furnace is working perfectly.
Check those $@#@^@%^U*&%$$**&^^%$ crimps if you are have trouble with your Attwood RV furnace. Cut them out and burn the suckers the next full moon.
I really do not like those bloody things!!
Hope this helps someone....