Yesterday morning I went to turn on the hot water and had nothing. No water at all. I thought that maybe my pipes had frozen overnight, but I had cold water from the cold tap. Then when I turned open the hot water taps in the house and turned one of the cold taps on, I had cold water coming out of the hot water side. Confused!!! I'm wondering if it's not a frozen pipe, but my WH? It is only 7 months old though.