My gate is equipped with a D3 Centurion gate motor. When I push the button to open the gate, the motor turns in the opposite direction (close) and tends to close further. Then if I deactivate the gear box and open manually, when I re-engage the gear box and try close the gate, it goes till half way. If I insist and push the button again, it opens again and continue running even when the gate is fully open.

SOURCE: I need to program a centurion gate motor receiver

Your gate controller reciever only has one code. You must set all the remotes to that code?

SOURCE: new chainsaw piston malfunction

sounds like you are topping out.You may have purched the wrong cylinder or piston combo.If its an aftermarket combo thats probably the problem.

SOURCE: My Liftmaster GDO makes a clicking sound and won't open

See if the trolley is jammed against the bolt just in front of the motor unit. If so remove the bolt and then run the opener until the door is closed. While the door is closed locate the 'up limit' control which is on the side of the motor unit. Turn this control 2 complete turns in the opposite direction of the arrow printed on the cover. Remember to replace the bolt.

SOURCE: Mighty mule gate opener motor burned up after 2 years

Did you ever find a motor to fix the gate opener? I am looking for the same motor and would appreciate any help you can offer

SOURCE: my craftsman automatic garage door

Hello. Plug the motor back in but do not attach the door to the trolley. See if the motor runs the trolley up and down. Also manually run the door up and down a few times to check and see if there is anything binding. If there is binding, find the problem, often a loose wheel, also grease the track and lube the wheels with WD-40 penetrating oil. Finally, if the motor runs the trolley up and down with no problem but bawks when the door is attached to the trolley your motor is on it;'s last legs and needs to be replaced. J.