PAtty62, I've moved your question to it's own new thread. Welcome to the Heartland Family and Forum. Your Water Heater operates on a self igniting feature when on LP. While using the trailer, leave the switch in the on position for normal use. Keep in mind, you should always have water in the system and in the water heater before using it. When you turn off the heater there is no need to do any reset or anything, just turn it back on next time you want to use it. Happy Camping.