Suburban LP water heater malfunction, need help.

Hi, I am on a road trip with my 2018 Eagle Cap 1165, and the water heater has malfunctioned. I hope someone can help me with info to get it running. It is a Suburban SW6D, SN 171504878. LP only, no 110v. Last night I noticed that it lit and shut off about 3 times, then stayed unlit. The fault light next to the switch remains lit when ever the switch is on. This morning, I turned off the switch inside the camper for a while, then when I turned it back on, I could hear the gas valve solenoid open and close 3 times, but no flame. I went outside and opened the cover of the water heater, and pressed the reset button, but could not feel any movement of the button. (under a rubber cover) Then I turned off the switch inside the camper to reset the start up cycle, and when I turned it back on, I ran outside to observe. The gas valve was opening, but no spark to light it. The next time the gas valve opened, I lit it with a lighter, and it fired, but only for a couple seconds and then the gas valve shut. I repeated this process a couple times, with the same results.
The batteries are fully charged, and there is 1-1/4 bottles of propane. The furnace and the stove both operate properly, proving a proper gas supply. I hate having to go to a dealer for repairs, especially on a road trip with a schedule. I have tools, a digital multi meter, and good mechanical/electrical skills. But it would be good to hear from the voice of experience before I go any further.
Thanks,
Joel