The fact that it fired up right away this morning leads me to believe that condensation was the issue. I think I'll bring it out next time, but throw my MB200 in the bag as a backup.From just above freezing to a warm room, I would be concerned with condensation. I suspect that is the direction that @Engle is thinking.
If the PF350 has an intermittent trouble, I'd rather find out sooner than later.
What threw me off last night was the first set of cabs I was playing though:
