Originally Posted by cabranch47
as I walked by I heard the igniter sparking and the burner firing up. I guess that this has been going off and on all night. Might I have some damage from this running without water in it?
Short answer is Yes. Maybe. Do you feel lucky? With no water in the
tank the burner tube will get VERY hot before the tank itself is heated enough
to "satisfy" the LP thermostat. Since you heard it still trying I guess the
hi limit has not tripped.
Your burner tube might be damaged or not.
You can try connecting to city water and un-winterize your WH by
replacing the drain plug/anode (if it's out now).
Switch the valves from winter mode to summer mode.
Open a hot water faucet and let out the air to fill the HW tank.
Watch the tank from the burner side and see if it's leaking.
No leaks- maybe you're ok.
Flip the LP back on and see if it lights and heats normally.
Of course you know now that you should not let kids play in your RV
unless LP and electric are OFF!! Even then they probably need some supervision.....