Furnace Issue

[Mike 67]

I have a 2020 Keystone Outback Trailer. I am having an issue with the furnace. I turn the thermostat to "Heat", the blower starts, then the burner lights, will start to blow warm air for about 1 minute, then shuts down. Right after it shuts down, there is a sound that sounds like an electric actuator closing for about 30 seconds. (Mechanical growl sound). I am hooked up to 120 V, propane tanks are full, stove works, etc.

[jsb5717]

Welcome aboard! There's a lot of this going around. First thing to check is the fuse. Is it resettable (black) or standard (blue)? If it's black replace it with a normal blue (15a) fuse and try the furnace again.

Is this an Atwood furnace?

[chuckster57]

If it “growls” every time, I think it may be a bad motor, of fan(s).

[sourdough]

Does it wait a minute or two then try to reignite? Other thought might be a control board but there should be no "growl".

[B-O-B'03]

Originally Posted by sourdough

Does it wait a minute or two then try to reignite? Other thought might be a control board but there should be no "growl".

When our trailer was new I was checking out all systems, prior to our first camping trip and I discovered the furnace would go through a " start fan, light burner, shutdown" cycle for 3 instances and then quit.

Further investigation revealed whoever roto-zzipped the hole in the wall for the outside outlet had also cut through the drain-line for the kitchen sink, right above the furnace and water had ruined the control board.

It dd now make any strange noises, that I remember.

-Brian