A 1/2HP Fimbel Garage door opener.
I open the garage door, drove out, tried to close.
It did not. Sudden failure, then.
Got much closer. I can hear the motor "humming" no movement.
Disconnected electrical power, disconnected the belt. The motor is free.
The chain is not jammed. I can move by hand.
Reconnected - the motors turns.
Too low torque?
I can stop the motor shaft by hand (glove, of course)
Any idea how to proceed?
Thanks & happy new year