My furnace kicked on this AM, but no heat was coming out of the vents. I checked the igniter, and sure enough, the element had burned out. I replaced the igniter and when I turn everything back on, the fan that blows air into the gas changer hums but does not spin. I took it off and am abe to spin the fan very easily. I've read many posts about lubrication, capacitors, etc. What's the best place to start? When I connect the power leads to the fan, it is as if the magnest around the cylinder grab it and prevent it from spinning.
Thanks for any suggestions. Ron