I have a 1950 Hunter table fan, and when it is turned on, the fan blades completely lock in place.
When the power is off, the blades move freely. I have taken it apart, and verified that all parts inside seem to move ok and are all well lubricated.
When the power is turned on though, the coil in the middle of the motor ring becomes attracted to the sides of the ring and locks in place. Its almost as if the magnetic forces are not switching to move the coil and it sticks to the side.
I have never seen another fan that can put out as much air so I would really like to fix it. Can this be fixed or it it a lost cause?
I have tried moving the rotors, but they are very difficult to move, and stay locked in place on their own while any current is applied
You diagnosed the problem correctly. The windings are shorted. The days are gone that motors of that size are rewound. I bet that a replacement motor hasn't been available for 50 years. I know how you feel. I am using a Kenmore window exhaust fan in my garage that my dad purchased in 1955.No replacement will ever move as much air as quietly as this one.
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