2018 Vista 29ve water heater (SW6D) problem and siding discoloration

[GGcamper]

We have a new to us 2018 Vista 29ve with a problem with the water heater (SW6D) . When we turn it on, within a few seconds we hear it kick on. It tries to light and doesn't. We read all the instructions and tried the reset but that did not help. When we checked it, the pilot lights but the heater won't sustain the flame, so it shuts down. My husband replaced the thermocoupler but that did not help. Originally it was working fine but then we refilled the propane tank it stopped lighting. We checked the stove to make sure the propane is flowing and there is no problem there. We briefly had a problem with the refrigerator working on electric, but after the propane refill, it would not work on propane. This eventually resolved itself after about a week and it has been working consistently since. Any suggestions on simple repairs we could do ourselves?

We also noticed that the fiberglass is beginning to get blotchy(not super obvious yet), especially on the passenger side and even more on the garage doors. We try to keep it clean and treat it with 303 protectant but it still is deteriorating. I used paste wax to provide better protection but that has not helped either. We keep it out of direct sunlight as much as possible and covered in the winter. Any suggestions on how to restore the coloration?

 

[Ted Fyden]

i had to replace circuit board on my water heater. found one on amazon but order got cancelled. leaving on a trip so i had to buy at RV dealer.