All ActivityMost RecentMost LikesSolutionsRe: Intermittent hot waterThanks to both of you. When it works, i have no problem with the hot water, so I think the mixing valve is not an issue. I was thinking it could either be the eco tstat or the circuit board.Intermittent hot waterI am new to rv'ing. I purchased a 2007 quantum fifth wheel. I am having a problem with the hot water heater. The water heater is an Atwood GE16 EXT. Usually it will heat, using the gas, the first time. Yesterday was only the second time my electric side worked. Usually, I can go outside to the water heater and unplug both connections on the board, along with the spark control and the 2 amp fuse and plug them all back in and it will hear for another cycle on gas. Does anyone have any suggestions where I should look for the problem. Could it be the fuse on the thermostat or should I look at the board?