Main Trailer Fuse

JohnG4706 wrote:
Larry, thanks. Do you have to do anything to have the circuit breaker reset? When I left CW, my power had been restored. The tech gave me the original "fuse" and told me it was "blown" and needed to be replaced.

I "assumed" since he had the electrical tools that he was correct. After sending my original post, I tested the "blown" fuse/circuit breaker and it was now GOOD. Now I'm really confused.

What would cause all the lights and other 12V appliances to not work? I tested all circuit breakers and plug-in fuses and all tested good.

Thanks again.

John

You could google and look it up, but I seem to remember reading that it's like a temp/time sort of thing for the auto resetting and some where in the back of my head I think it resets in under like a min. On the rarer manual ones I think there is a button somewhere to reset them, but I've never physically seen one of them so I'm not sure how they are reset. I have two under my trailer near the battery, one for the main power and one for the slide out.

With all that said, they can burn out, arc and get destroyed by weather so they can go bad, but that should take some time or be visibly noticeable.

I think they might be required just like fuzable links in a normal vehicle as protection on any battery to prevent extremely high amerage shorts that could cause a fire, etc. That's why they are so close to the battery. Normally a fuzable link is connected directly to the battery as the first layer of protection.

Larry