Any recommended Competent Prevost service centers in Arizona?

[503rdPIR]

Gil,
We were hooked up to shore power and everything was working in the coach and we woke up in the AM and the power was off. The transfer switch was clicking on and out b it would not set. Finally after pushing it in and holding it I got it to reset if that is the correct term. Everything was fine until we unhooked and travelled to the next RV park where we hooked up to shore power and had no power in the coach and no voltage or amp readings on the control panel in the coach as far as line voltage or load current. Pressing in on the transfer switch and holding it did not solve the problem, only starting the engine would cause the switch to function immediately and make power inside the coach available. But turning off the engine led to the switch opening and a loss of shore power. Only after letting the engine run for about 30 minutes were we able to shut the engine off and have the transfer switch remain closed and functional. I am totally clueless regarding the purpose and functionality of the switches in the "power" bay, but there is one 12 volt and two 24 volt switches in the second port bay. Are these the bypass switches that you mentioned and does turning them from on to off successfully bypass the batteries? Thank you for your thoughts. Also, when the engine was running the readouts or red lights associated with the inverters were fluctuating and changing values as far as D.C. Voltage and D.C. Amps were concerned and even flashing overload if that helps in identifying the problem.
Duh, I just checked the power bay and realized there are a total of 4 manual switches - one for 12 volt, one for 24 volt, and one switch for each of the inverters.