The power cut off switch in the battery compartment was broken. No current getting through. Actually when I tried to twist it to the on position it came off in my hand. We have had the Montana a year today and the switch has never been touch before. I wonder if it was delivered to us in that condition. Anyway, I got another switch, installed it and it powered the inverter up. Thanks for the reply "jetskier". It helped track down the problem.
