Ticket Example: E1 Code Tech Support J September 11, 2017 09:14 Follow Friday 07:46 pm John Doe Thank youfor your help Tech Support G Thursday 07:56 pm Hello John Doe,Good day!The E1 code indeed pertains to Gas.1.Try tapping on the solenoid valve to ensure that it is not stuck. If the gas company has checked the pressure feed already and is in the right column (8-11 inches of water column) then we have to check the screen filter if it is clogged.2.Unplug the unit and check all the wire connections on the computer board and check the flow meter sensor too.3.Make sure that the propeller inside of the sensor spins freely and is not obstructed.4.The flow meter sensor is the main trigger for the unit's operation. It is located inside the water heater. Just detach the front cover by removing the 4 screws.5.Then, take out the flow meter sensor and check it.Regards,GwenTechnical Support Team Eccotemp Systems LLC 1-866-356-1992(Mon-Fri 9am-8pm PM EST)www.eccotemp.com John Doe Thursday 07:05 pm wife took shower water was hot. Toweled off and went to brush teeth and no hot water. Getting e1.