Recently when it closes the door will start coming down a few feet and
then stop and go back up. If I try again most of the time it works.
Sometimes it takes a few more trys. What should I look for? Everything
was greased a few months ago. It's a chain and always been noisy since
I moved in. There are no apparent obstructions that would make it want
to reverse. Also it doesn't have any of those infrared sensors or
anything that sense something is there. It only senses by resistance
to the door as it's coming down.
I suggest you start by disconnecting the opener from the door and see
how it operates. It should move easily up and down and remain in either the
up or down position without any assistance. My guess is it is requiring too
much down force due to a spring adjustment problem or an alignment problem.
Next is to try adjusting the clutch on the opener to increase force a
firstname.lastname@example.org (Grendel) wrote in message
The type of grease used & where it was placed may be the problem.
Grease will thicken in cold weather & will sometimes make the door
work worse then if it wasn't greased it all. Grease placed in the
wrong places will also collect dirt & dust and tend to gum up. The
rollers & door tracks should never be greased & if they were the
grease may need to be cleaned out. The bearings on the rollers should
be oiled and thick axle type grease should not be used on the opener.
Low temp lithium based greased should be used instead.
If the down force is tightened too much the door could be damaged
instead of it reversing like it's suppose to.
I used the white lithium grease. Sears said it would be fine for garage
doors. I looked at the directions on a package for another lithium grease
and did basically what it said. I ran it over all of chain and the metal bar
in the middle. Not sure the exact name but it's next to chain and goes
parallel to chain. I did made the mistake of putting it on the rollers. This
was during summer. I wiped off most of the grease on the rollers but there
was a slight amount that got in the tracks. Now that you mention it the
problem started happening recently and for the past 2 weeks it's been super
cold (under freezing by alot). Could even a slight amount cause it?
I didn't lube the axles of the rollers since there was grease in there
"Grendel" I am a garage door opener installer in southern NJ. I have
seen the heavier greases cause a build up of dirt and crud that leads
to gum ups but don't think this is your problem. The noise is likely
your stationary pulleys over which the cables from extension springs
pass. They wear and turn into cams which get out out of phase with
each other causing the door to cock back and forth sometimes driving
itself into vertical track. The test is too spray inner circle of the
pulleys where the bearings are housed. This will normally buy you
several months until warmer weather to replace them. If your bearings
are totally shot you can feel the slop by wiggling it back and forth
when door is in full up position. It tends to be an invisible problem
because cable tension hides this giveaway indicator during operation.
I only use WD40 for all lubrication on doors. repair FAQhttp://mywebpages.comcast.net/froarty572/openfaq.htm
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