Atwood Water heater trouble

I had this same problem with my gas only Atwood water heater. If a new probe did not fix the no spark condition, then the only thing that can be done is replace the control board since it is the LRU (Lowest Replaceable Unit). If you can't get it replaced under warranty, you can use a board made by a third party company called "Dinosaur" It has been several years, but when I had to replace mine, the Dinosaur universal water heater board was about half the cost of an Atwood board and works just as well. The Dinosaur board was around $100. Even if under waranty, if it means your time and gas to hook it up, take it to the dealer, leave it for who knows how long, go pick it up, it may be worth your expense and agrevation to just do it yourself. There were several small things on my trailer I just fixed myself rather than trying to get warrantied at the dealer.

Of note, the screw holes are in slightly different locations so be carefull. I managed to put one through the aluminum tank when mounting it! I then had to pull it all apart and take the tank to a friend to weld it.