Glenna

If your battery (your coach battery, not the car battery) is low, say below 12 volts DC, then you furnace will not start. That is because the flame sensor needs a full 12 - 14 volts to activate. As mentioned by someone else, most furnaces are only Propane fired. The electricity is used to run the fan, thermostat, furnace fan and the controls. The "shore power" is AC, and comes into the main panel, is convert to 12 volts DC and then charges the battery and runs other things (fans, ...

If your battery (your coach battery, not the car battery) is low, say below 12 volts DC, then you furnace will not start. That is because the flame sensor needs a full 12 - 14 volts to activate. As mentioned by someone else, most furnaces are only Propane fired. The electricity is used to run the fan, thermostat, furnace fan and the controls. The "shore power" is AC, and comes into the main panel, is convert to 12 volts DC and then charges the battery and runs other things (fans, ...

If you are hooked up to shore powered electricity (15-30 amp.), you may have blown a fuse. Check around your converter box. The location of my '89 Sunrader's is beneath the fold-out couch beside the freshwater tank. Access is through a metal panel that is hinged near the floor and reachable by the passenger riding up front. Open it and check all the fuses (turn off main breaker first). I'll bet one of them blew. BTW, mine are push-pull fuses that may require a fuse puller. O...