Originally Posted by KyDan
My first guess is a stuck solenoid valve at the burner.
Are you SURE you have gas to the rest of the RV?
You say it's a coach-- those have a LP shutoff that's interlocked with
the Propane gas detector. IF the detector is faulty or the solenoid
it connects to are faulty you get no gas anywhere.
If everything else is working normally but just no gas at the burner
of your water heater, I'm going with a stuck solenoid valve in the water heater. Try tapping the solenoid with a screwdriver handle
while it's trying to light.
If you get it working please write back and tell us what you found.
Stove will still light even if opd valve has tripped on propane tanks !
Hw heater and furnace require to much gas and will NOT light if opd valve has tripped.
Unless he's tried shutting off tanks that's still my bet.