Well, Truck Campers are not in my line of sight. Very few of those in Texas. BUT, Your type problem is reported over the years on Truck Camper Refers. For some reason, the way Truck campers are installed in trucks causes a flame problem on various models of refers. They used to make kits(Norcold and Dometic) to stop flame out in transit in truck campers. This would have to be addressed by both Norcold and Northwood. Remember, the FL just means NO FLAME. It failed to either LIGHT or RELIGHT and the ignition process timed out after 3 tries. The other factor is, you have the refer in a slide out and you have the 2 upper and lower access doors and a normal install with no slide room, would have a roof vent. THAT may contribute to the air flow causing a flame out. Doug
