Hi, I have a Rheem forced air Natural Gas heating system, I can not find a model number, but it says "Imperial" on it and I'm guessing it is aprox 15 years old. What is happening is that when I turn the heat up, it tics then the fan starts up but no flames start in the furnace. Therefore all I get is cold air. The electric pliot lite seams to bw working but the flames never start. Please help me if you can. Thanks for your time.
