Atwood Water Heater not getting very hot

[Cujo7240]

We have a 2017 Wildcat 29RLX that has an Atwood gas/electric hot water heater model# GC6AA-10E that starting not giving us very hot water on our last trip. This is only the 4th time out with this camper, which was purchased new last November.
Bypass valves are in the correct position and I pulled all the electrical connections and cleaned/tightened them if necessary. The thermal disconnect fuse tested good. The water heater does turn on, but apparently it turns off before it gets to the correct hot temperature it used too.
Previously you couldn't put your hand under the hot water faucet without getting scalded. Now it just a little warmer than luke warm.
I decided to change our the thermostat and ECO sensors, but that didn't do the trick. The only thing left is the electronics control board. BTW, I have been turning on both the electric and gas switches at the same time to get the hottest water heating performance possible, but still only luke warm water. Has anyone had this issue on their Atwood water heater?

[Duckogram]

I think you are on the right track with the control board.

[Cujo7240]

I found the problem and it was my own fault! Apparently I left both the hot and cold valves of my outside shower open, but the sprayer end was shut off, so it was basically acting as a 50/50 mixing valve! Shut off the two outside faucet valves and my hot water is back to normal.

[Duckogram]

A very common oversight. Sorry I never thought to ask.