I have genie g5050 1/2 hp screw drive opener (about 12 years old) and a
20 ft (1 piece) wooden door with 2 center mounted torsion springs and cable
drums on the outer sides.
the GD repair company installed new springs and adjusted door about 1 year
ago, door looks straight/level and lifts fairly easily about half way up it
starts to go by itself a little and stops.
Door started kicking back up 1/2 way down about 3 weeks ago. this slowly
got worse. Then door started to stall/stop about 1/2 way up. Now door will
kick back after couple inches travel in either direction starting at any
position you set the door.
if i disengage the door from opener and turn it on the screw will turn for
about 4-5 seconds then stop. i thought it used to just keep going till you
hit the button again ???
What i tried:
1- checked and tightened all hinges,
2- move door up/down to check for binding.
3- cleaned then adjusted the safety tension on the rear of opener
appreciate any more helpful ideas