I was inverting the night of 8-21 with the bedroom AC running and the generator auto start sensed the start voltage and the generator started at about 3 AM.I awoke and activated the other 3 AC units,at that moment the bedroom unit shut down,so I shut down the other 3 and the the bedroom unit started again,it all seemed ok so I went to the panel and one leg had 108 volts and the other had 140 volts.The gen would seem to correct the voltage and I would try to start another AC but it could not put out enough current.I was going to Louisville Ky for the week and so I called Nixon Power and they met me in Louisville,their rate for Sunday is $250 per hour and 4 hours minimum.The Technician did a good job but they did not have the needed controller,it was ordered on Monday and arrived on Tuesday.My real problem was that I was at the KY State Fair dry camping and so I had no choice but to find a generator,after searching around town the largest that we could buy on Sunday was a 8000 watt Generac.I wired it up and we had power,I felt like that we were on life support,I could run 2 AC units,charge the house batteries at the lowest setting and run the water pump or the water heater.On Tuesday Mike from Nixon had controller in hand and did a great job of figuring out the problem,first he replaced the SCR and we ran the generator and it failed in about 30 minutes,then he replaced the controller and started the gen again,we had voltage at the gen but not in the house.The failed controller apparently sent a voltage spike to the transfer switch and took out the coil in the transfer switch.I thought that was the problem so I called Troy at Liberty and we pulled some fuses in the transfer panel and plugged the shore cord into the buddy plug and we had power to the house but not to the AC units.Troy had me put in the two bottom fuses in the transfer panel and that sort of fixed it,we were now inverting on one leg and the other side had current from the gen.I could now run 3 AC units.We ran like that the rest of the week.When I got home I replaced the coil in the transfer switch and everything is working again.I know that Liberty has inverter bypass switches in the transfer panel and I did not try them because I did not want to upset anything.I do still have one concern,I had 116 hours on the new control panel when I got home,I serviced the gen and then I had 3.9 hours on the control panel,Bill at Liberty Chicago is checking on this for me,I think that I really want another new controller.