Help needed. I have a RigMaster APU and it has the version 2 controller but the controller does not have any power to it. The in sleeper board shows it has good voltage to it, I've checked the fuse under the sleeper where the controller is connected and it is good, I've checked the connections at the batteries and it has the copper style fuse inline but connections are good. I'm not sure if there's another fuse somewhere else that I'm unaware of??? The apu motor itself has good fluid and all connections there are good