I had problems with my Atwood not lighting on either electric or gas. Open up the heater door to gain access to the circuit board and wiring. You will see a pair of brown wires one of which is going into a connector. The other one is going into an electrical component that looks a little like a resister, That then is plugged into the heater. That is a high temp overload. Take it out of line and plug the brown wire directly into the heater. If the heater lights and comes on electric then go to your camper parts store and this can be purchased for around $25 for a pair of them. If you have time to wait, look on Amazon for the part. I found a circuit board which the dealer wanted about $250 for and it could be ordered from an authorized dealer through Amazon for $156 with overnight shipping. Good Luck..