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|Re: Duo-Therm Furnace won't ignite by Bob Roy|
|I have a 1984 motor home with a 900 Series direct spark ignition Duo Therm furnace. Model # 90030-711A. When I set the thermostat higher, the fan starts within several seconds, but that is all. No heat. I've tried turning off the gas for 5 or 10 minutes and then going through the same process over & over for several hours, thinking that perhaps it might take the gas a while to get through that particular pipe since it hasn't worked for more than the 2 years we've it. All other propane appliances work. Any suggestions would be greatly appreciated. Thanks, Bob.|