Ok, when I posted that I thought I had looked at all the fittings and they all seemed dry, but finally just started moving them all a bit just to see if something moved and sure enough the little plastic fitting on the hot side right at the water heater was loose and not screwed on right.
I have to admit I am a little dissapointed in this Cyclone, we had a different brand toyhauler and thought we were taking a step towards better quality but am almost doubing it now. It seems things like this and my microwave that worked for only 3 days shouldn`t happen on a $72,000 msrp fifth wheel. And now I have to put the new microwave in..... lousy warranty in my opinion.