Convertor/Charger Manufacturer

[Robert Quinton] I am trying to wire up a used trailer for my mother that has a used convertor that is not origianal so her book does not match for wiring. I would like to find a book or get some directions on wiring it up properly. They think they know all the wires except the blue one coming out of the unit. It is made by BW Manufacturing. She found a UL number but not a model number.
Convertor/Charger Manufacturer

[harpsrv] Yes, It can be bad new if you do not know what you are doing. I am not for sure were the blue is wire ran to, on other unit it go&#039s to the back side,in order to run the controls from the convertor/