An electric spark automatically lights the burner when the thermostat drops below the set level. If there is no hot water, verify the battery is charged. An insufficiently charged battery will prevent lighting the unit.
If the RV uses an on demand heater, the water may need to run for a minute before the burner gets the water hot. Premature shut-off may not allow the burner to produce the desired water.
Verify there is sufficient propane in the tank and that the tank valve is open. No propane means no hot water.
Check thermostat setting, typically located on the water heating unit normally accessed from the outside of the RV. If the thermostat is turned off or too low, the burner won't ignite.
A pilot light is a small, constantly burning flame in the burner tube. A thermostat allows a larger valve to release propane, which is lit by the smaller pilot, producing an intense flame to heat the water. Open access door and visually confirm there is no flame. If you have a flame, check the thermostat setting. If it just lit, it takes 10 to 15 minutes for the water in the tank to heat.
If no flame, verify that the propane tank is open and has sufficient propane.
Turn the red knob to pilot.
Using a long match or lighter hold a flame at the end of the pilot burner while pressing the red pilot light nob in.
After a small flame lights, which could take as much as a minute, continue to hold the pilot button in for about a minute. If you let go of the button and the small flame goes out, simply push the button back in and relight.
When the pilot light stays lit without holding the pilot button in, turn the nob to "ON." A much larger and more intense flame should light almost immediately. Then simply wait 10 to15 minutes for hot water.
