wrote:
Sounds like a bad motor winding (was quite common on some Genie
openers). What happens is the motor winding shorts to the motor housing
when it stops in a certain spot. So when you turn the screw by hand you
move the motor from that spot & that is why it will run afterwards.

Almost all parts for openers without photo-cells are obsolete so you
probably won't find a replacement. You could try moving the up limit
(closest to motor head) just a little bit to see if you can keep the
motor from stopping in that one spot, but even if it works it will
probably only be a temporary solution.

Doordoc
www.DoorsAndOpeners.com

P.S.All the relays are on the circuit board of under the 3 plastic
boxes. One is for the up, one for the down, & the third is for the
light.

Hi,
No brushes on this motor? I over looked it.
Tony