Originally Posted by Jasong
I am trying to help my dad who is supposed to leave tomorrow and he is tripping the 30 amp breaker on the inverter charger. He just had work done to it and they went over the electrical. While getting it ready today he found he keeps tripping the breaker and while troubleshooting it he found a wire off by the batteries. If someone has a good wiring diagram it would help a lot.
We need the make and model of the inverter/charger in order to be of accurate help here. Wires off of a battery terminal can be a dozen different things. And, a wire off of a battery terminal should NOT trip a breaker on the inverter. It sounds as if there's a fault in that part of the inverter, or at least a circuit used by it, be it the inverter side or, the battery charging side.
Inverters have changed and, improved over the years since that one in your dads coach was installed, especially it that's the original one. Circuitry and protection are much better. The principle of operation is still the same, supply 130VAC from available 12VDC. And, if equipped with a charging system, charge the house batteries when the coach is plugged into shore power or, running the generator.