a. What kind of motor repair would be easy when the blades of a table, floor or window fan stop?...
The blades don't turn.
But sometimes a fan will hum a bit when turned on low, medium, high or sometimes there will not even be any hum when turned on high
b. What kind of motor repair would not be easy when the blades of a table, floor or window fan stop?...
Let's call it a shop fan, so I can answer with a clear conscious . The shaft gets egg shaped, and sticks in the bearing.
Wet a popsicle stick with Mobil 1 oil [ any weight ], and apply a tiny drop to each shaft bearing. You should be able to tilt fan, and drip a drop on each end of shaft. Turn blade by hand, see it turning easier ? Oil again, plug in, and enjoy.
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