Just incase you have to replace your circuit board there is a highly rated USA built circuit board that replaces boards in all RV furnaces, water heaters, and the fridge. I had trouble last week with my water heater and stumbled across these boards and after a few hours of reviews and Utube vids the choice became quit obvious for myself. No more Chinese built boards that have a lifespan as long as a mosquito. This might not be your issue, but if it is, don't let a service man replace your board with more garbage. Dinosaur provides warranty for 3 years, that in itself is enough reason as to the hardware they use in there boards. (https://www.dinosaurelectronics.com/
) Just saying but the choice is your !!