furnace fuse blowing

budwich wrote:
that's why you need to do the checks that have been suggested to determine what the h.ll the problem is. IF you don't want to do that, replaced the unit, and see if that works. That's a "strategy" but probably not one most people would follow. Replacing the unit won't solve issues with wiring going to the unit... but I assume you will have someone do the work so it will become their problem (if it doesn't work), so you can go across that "bridge" if necessary.

No, I will replace the unit myself as I have pulled it out many times to have it in for repairs, I was just thinking if I do a bench test that it would blow the inline fuse telling me the issue is in the unit itself which I would replace. If it ran fine during the bench test I would assume the problem is in the wiring leading to the unit in the camper and not buy a new furnace.

I know I could check individual switches etc to pinpoint the issue but not interested in replacing parts on the furnace.

thanks.

Jim