Need help with Multi-fuel Personnel Heater

[coyotegray]

Ok, I installed it new last year about this time.
Has run great. Very nice to have over the winter...

I had not started it (The Heater) over the summer.

I have been trying to sell my truck and today I had a guy who was going to come over and take a look. He couldn't make it but I started fooling around with the truck just to make sure everything was working correctly.

The first time I fired up the heater it belched out so much smoke I couldn't see anything. Tried again with the same results. So I started backing off the fuel adjustment. The smoke cleared. Stop and started it a few times and everything is great. Then I had it running and it "back fired" and shut its self off. I got a little flame out of the intake and then it came back on and went through the shutdown process. Now when I try to start it I can feel and hear a breaker in the control box flip.

Ahhh!!!!!!!! What the ****!! It had been working perfectly.

Any Ideas..?

Thanks,
Andy..

 

[jwaller]

what happened is you messed with a very finely tuned fuel adjustment and now you have no way of getting it back to the correct setting. it was smoking a lot because it was clearing itself out after not being used for months and months.
good luck with fixing it.

I guess you could play around with that setting but if your now hearing a breaker trip it sounds like the heater has internal wiring short, most likely due to the backfire cooking some wires, mostly due to the improper fuel setting.

 

[coyotegray]

What would it be clearing out? I let it run hoping the smoke would clear but it just went from white to black. I know where the setting was originally. When I turned it back up it would start smoking more.

What internal wiring could have been damaged?
What condition would cause a back fire in the first place?