It has been a while since I have posted on this forum, but I need some guidance today. I just brought out my 2011 31FS Greyhawk to de-winterize and sanitize the plumbing. For some reason I cannot get hot water to flow from any of the faucets or shower heads. If I put the hotwater in by-pass mode water will flow from the faucets, but now when it is out of the by-pass mode. There seems to be water in the hotwater heater because it shoots out if I remove the drain plug. I have this feeling I am just doing something simple wrong....but I just can't figure it out. Any suggestions? Thanks in advance!