theoldwizard1 wrote:
Start by looking at the current draw from the battery and then measure the current draw to each individual DC circuit from the DC distribution/fuse panel. 10 or 15 minutes and you will know where your power is going.
Even easier is to just clamp on the battery to see the total draw, leave it there, then start pulling DC fuses. The drop in current as each is pulled tells you what that circuit was drawing. That way you don't have to get behind the distribution panel. And if there's still a large draw after pulling all the fuses, then check the brake breakaway switch and measure the draw to the inverter, because those should be the only potential large draws which wouldn't go through the panel.
But, yeah, asking "this is broken, why?" without any detailed info isn't any way to solve a problem.
