[pingleequan]

Hi
I have a TRANE XL80 Furnace. Couple of days ago the furnace “Blower” started to make humming and grinding noise and it wouldn’t turn. I then would give it a push start by turning it by hand, and it would turn for couple of hours and it would do the same thing.

An hour ago, it stopped turning even when I turn it by hand. I can hardly see the blower blades turn very very slow. I can stick my hand inside the blower to feel the knob sticking out of the center. I sprayed WD40 at the knob but it did not make any difference. I can’t see the center but I did it by feel.

What can I do to get it to turn and to stop making that awful noise? I have 3 kids and would appreciate your help

I may need to uninstall it. How can I do that?

How much does it cost normally to replace it, if need be?

Thanks in advance for any help

[labman]

Is this the style where the motor is inside the blower, and the blower is mounted on the shaft of the motor? It is possible there is a little cap near the center of the motor where the shaft comes out. It is tough to get at, but putting a little oil in it may get it going again. Many bearings are lubed for life, and when they go dry, that is the end of the life of the motor.