Question:
Does where the "arm" placement that attachs the door to the rail have
anything to do with my problem? On my door, the arm is connected in
the middle of the top section on my door. I notice that the top of
this section of my door sits on the arm...that's probably not a good
thing? I checked out my neighbors' set-up and their door arms are
connected about 2 inches down from the top on the top section of their
doors.
I also noticed today that I have two different tracks that each side
of the door rides along. On the left hand side, the track is at a
slight angle to the ground, and on the left side, it is parallel.
I didn't install either the door or the operator...my house is not new
and I'm guessing whoever installed the door or the operator didn't
know what he was doing...
Answer:
I had a similar problem on my new garage door and opener.
Seems the angled arm was not connected to the bracket (on the top panel)
properly. It ripped the whole bracket off the garage door.
(snatched the 4 screws out) Mine was under warranty so I called the installer.
He was an idiot. I had to show him how to fix it.
The angle piece that was screwed to the door panel was rescrewed onto the
door with bigger screws. Then the arm was pinned (a cylindrical piece
with a cotter pin through it) in the center hole on the angle bracket.
They previously had the arm pinned to the highest hole on the angle, this
allowed the arm to torque the angle excessively which caused it to not
track properly.
I just installed my Genie Excelerator (screw drive) a few weeks ago, and
there were explicit instructions that the bracket on the door, the one the
arm is connected to, should not be any lower than the uppermost rollers.
Also, the "pit" of the arm should be facing skyward, and the two pieces of
the arm, one curved and attached the door, the other straight and attached
to the drive rail, should overlap as much as possible.