I've got a Genie 98 screw drive opener on my garage door. Came with the
house, no idea how old it is. There's no safety beam at the bottom, which
may give some indication of age. Springs were professionally replaced a year
ago, two bad rollers replaced, and I cleaned & lubed the tracks.
When I try to close it, it travels maybe two inches and stops. Various web
sites say to check/adjust the limit switches. Does this refer to
spring-loaded lever switches mounted on the track? If so, where is the trip
thing (on the door) supposed to land, relative to those switches, when the
door's in either the opened or closed position?
I don't know how old your openers are, but mine are just a couple of years
old. There is a force adjustment screw-in and out post of the inside of the
box that encloses the motor, just above the light bulb on mine. There is
also a close switch on the track that turns off the motor when it is tripped
by a small metal arm. So that are actually two different mechanisms you have
to understand. My guess it's the force adjustment screw. I'm not real clear
on this so I suggest you give Genie a call and they can walk you through it.
The info may also be on their web site.
Genie's website is http://geniecompany.com/ you can get manuals in PDF
format at http://geniecompany.com/GenieCompany.aspx?cid22
As for the OP, it sounds like the door springs are too tight, the door is
either binding a bit and/or the down force is set too light.
You say the springs were professionally replaced but was it replaced
correctly? Disengage your door and see how easy it is to come down from
the header. Bring it down about 2' and let it go, ideally it should stay
put. If it flies up it could be that your opener is fighting the initial
tension and reversing. If the spring tension is too strong adjust the
tension or replace your springs with the proper rating if adjusting fails.
The reverse mechanism should be adjusted so that when it comes down onto a
roll of paper towels placed at the center of the door, it doesn't completely
crush the roll before it reverses.
At two places along the track, one near the motor and one near the other
end, there should be a spring switch. This is hit by a traveler on the
carriage that travels on the track. These are the limit switches.
The one near the motor stops the up travel, the other stops the down
travel. They cut the motor off a bit early so it will coast to a stop
at the right place.
Rich Greenberg N Ft Myers, FL, USA richgr atsign panix.com + 1 239 543 1353
Eastern time. N6LRT I speak for myself & my dogs only. VM\'er since CP-67
Rich, please stay tuned until tomorrow, when I have a chance to hurl
obscenities at the thing, which will get it working briefly so I can observe
where the traveler lands relative to the upper switch. Maybe that'll shed
some light on the issue.
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