I would suspect that the shutoff valve has broken, and the gate has dropped into place shutting off the hot water.: After using the washing machine on a hot water cycle, : we have had no hot water pressure anywhere else : in the house. The first time this happened we got our : pressure back in about an hour. This time it has : been 2 hours, still no (hot) pressure at all…dry. There : is plenty of cold water pressure at all faucets. : Is there a blockage in the heater?