I have an electrical problem with my 2000 CC Affinity. With the main in house breaker is on, I have no voltage to any 120 volt outlets. When I cut the breaker off, they work and the power is coming from my inverter. I know this because the house batteries slowly discharge, as they should. When I turn the main breaker on again, exactly 30 seconds goes by, and I have no power to any outlets and the batteries start to charge, as they should! HELP!