Gas water heater
Been messing with the Atwood water heater for the last 2 mos. it will light and run 2-5 min the shut off then do it all over. Other times it will when cold it will start and run fine. It has a dinosaur board, the jet is clean, the grounds have been cleaned, the terminal on the board has been cleaned, T stat and eco sw are new. I'm leaning towards a flame sensor or gas valve. What say the jury?