I need help identifying if my thermostat is going bad or my circuit board or something else? My water heater will not automatically ignite, I touched the circuit board top connection and if I apply pressure sideways I can get the burner to ignite but sometime only for about 2 mins, sometimes not at all just clicks and other times a full cycle. Electric side does not work as well. I even removed the thermal cutoff to rule that out as the possible problem? If it's a short some where I'm not sure how to test for that?
this sounds just like my problem last week. I cleaned wire contacts with a Dremmel tool using the wire brush attachment then sprayed contact cleaner onto them. still, sometimes it lit--sometimes not.
next had wife operate wall switch and I used one of those lighters that you can buy in any store and heater would lite like normal.
I contacted Atwood website & they replied immediately & said to replace ECO/T STAT (part #91447) which I did. problem solved.
part costs $20 & isn't hard to install.
contact Atwood's website and they may have another solution. doesn't hurt to ask.