Water Heater on the brink

Hello everyone!! I'm a new RV'er and new to here. My wife and I just bought a 2002 Fleetwood Prowler. The only thing we can find wrong with it is our own sheer dumbness. I'm not mechanically inclined so be patient. We took our first trip back in November to Myrtle Beach. We didn't know that the LP regulator gauge wasn't working properly. So when we kept on running out of propane, we still thought we had some. Anyway, when it ran out at a RV park, we kept on trying to get the water heater to light. You could hear it try to light, but naturally with no gas, it would quit. We would let it sit for a minute and then try again. We kept on doing this until it just quit trying to light. When a park employee came to our rescue and refilled our tanks, it was too late. We couldn't get anything from the water heater.
I've been looking at the forums to get some ideas, but am still pretty much lost.
I have an Atwood GC6AA-9e. The circuit board is part# MPD93253 2020-82. Is there any way to check these boards to see if they are blown?
I have a photo of it and another piece that looks like the plastic around it got a little hot. Is there any way to upload photos to a post? Any information would be appreciated.
Thanks in advance
Lost Traveller