It's already time to have some heat here in Minnesota but instead of heat, I get frustration.
If I set the thermostat to auto, the fan kicks on, the pilot glows, the gas fires up and just when I think the big blower is going to kick in, the flames go out.
If I set the thermostat to on, the big blower blows but there is no heat.
I have checked for blockage and found none. The fan works great, the heat exchange looks great for the few seconds it's on, but it won't stay on.