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Why is my Lennox furnace blower not working?

This is a Lennox furnace model #G12Q3-82-7. The blower
attempts to come on but the fan is not turning. I suspect that the motor will burn out or already has and will need to be replaced. That is, just the motor not the squirrel box.

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2 Answers from these members:
scott d
First, disconnect power to the unit and spin the blower wheel by hand to see if it turns free. If it's stuck or hard to turn the motor will need to be replaced. If it's free, spin the wheel and turn the power back on (keep your hands clear) and if the blower wheel stops, the motor will need to be replaced. If it takes off and runs, usually the capacitor needs to be replaced. When the motor is replaced, the squirrel cage or blower wheel should still be ok. It's very rare that it would also need to be replaced. If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website:

Sears Home Services

. If you need more assistance, please resubmit your question, with additional details.
by scott d Earned 8,216 community points in Building Supplies
February 19th, 2010
0 votes
Manage My Life
The unit isn't but about 6 yrs old would that make a difference or can it go out that soon. I turned the fan and it turned freely. I changed out the relay switch, so far so good!!! Wish me luck. If that doesn't work I will concider the motor, but I believe I will have a professional do it.
by Manage My Life
January 13th, 2011
0 votes
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