I have a gas furnace in my attic, and I started the pilot light (which is hitting the thermocouple) but when it is supposed to go on, only a very slight blue flame emanates from the burner outlets and the fan does not come on. I can turn the fan on down at the thermostat, but only normal air blows out of the vents. I don't think it's a fan problem as the fan worked with the air conditioner.
The small blue flames are easily snuffed out by the slightest breeze.
Any suggestions?