"harlen" wrote in message
t...

"robb" wrote in message
nk.net...
Equipment:
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.

Problem:
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
r

My old genie screw type opener had a clutch. It sounds like the clutch is
slipping causing the motor to stop. There is a double nut that is spring
loaded and the nuts are located at the back of the screw shaft.


I didn't know the technical name ... but i did try to adjust what you are
talking about

if i loosened it too much the door openeing problem worsened but would not
get any better if i tightened it.

the odd thing is it seem to make a difference in the resistance i had to
provide for the kick back to occur when it was closing for the couple of
inches that the GDO would move itbut it did not solve my problem

that is if i tried to hold / block door from closing with my hands when i
loosened the clutch the door would kick back immediately (no travel) with
little resistance, if i tightened it it would travel the 5 or so inches as
before while i tried to muscle it to stop.


thanks for ideas and help
robb