UPDATE:
Factory sent me a new transfer switch, 2 weekends ago after a good rain, I plugged the camper in and right away the switch started freaking out. So i took the load wires off the contactors and turned on again. Switch still freaking out so I have narrowed it down to something between the house power to the incoming wires on line side of contactor. I went and cleaned all connections on power cable and add dieletric grease to all connections. Turned power on and bingo!!!! So I assume that I had moisture somewhere in the line and by adding the grease i solved my mystery. I went ahead and replaced the Transfer switch and for the past 2 weeks been running perfect!!!