"Our fan\'s blade will barely turn. Can it be fixed?"
Of course. Usually the front bearing gets dry and gummy. The fan may run after the armature is warm, but it fails to start when it's cold.
Unplug the fan first, right? Then lay the fan flat.
If you can get access to the shaft near the front bearing, just put a few drops of sewing machine oil on the shaft. Let it sit a while, then put the fan in its normal operating position, plug it in and turn it on.
If you can't get close to that area, you'll need to take the grill off, and remove the blades. Then lay the fan flat and squirt some sewing machine oil on the shaft near the front bearing.
The rear bearing is usually OK, while the front one seems to get dry and gummed up.
With the fan flat, run the motor on and off until it starts spinning freely.
Then replace the blades and the grill.
Failing all this, you might find some retired old timer who still does this type of work.
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