garage door opener
pacca
will reverse it self when it reaches the bottom , it's a chain drive 1/2
horse opener, any body have had this problem.Thanks
dpb
Shorten the down stroke just a tad.
--
Eric in North TX
Very likely an electric eye problem, look at the leds, they usually
show if they are aligned and working. mine show green when they are
right, but every manufacturer does things a bit differently.
Oren
Check the photo cells for proper alignment and clean the lenses.
Next would be adjusting up/down force settings.
DerbyDad03
It's kind of funny how so many people assume that all GDO's are
equipped with electric eyes these days.
I'm sure that there are millions of older models still in use. I've
got one.
I would say that the three possible problems, in no particular order,
are
Down Limit Adjustment
Down Force Adjustment
Electric Sensors, if so equipped
Note: If adjusting the Down Force Adjustment solves the problem, you
might want to look for a root cause, such as binding near the bottom,
etc. Something is telling the force limiter to reverse the door, so
something has probably changed in how much feedback the sensor is
getting.
Oren
<teama...@eznet.net> wrote:
>On Nov 3, 9:46�am, "pacca" <tp...@nospam.com> wrote:
>> I have lift-master garage door opener , at times when I close the door it
>> will reverse it self when it reaches the bottom , it's a chain drive 1/2
>> horse opener, �any body have had this problem.Thanks
>
>It's kind of funny how so many people assume that all GDO's are
>equipped with electric eyes these days.
In this case I say the "lift-master" brand uses sensors.
I'm only familiar with one GDO maker (Mom N Pop) that makes an opener
where all the sensors are in the operator.
tra...@optonline.net
> On Tue, 3 Nov 2009 13:38:20 -0800 (PST), DerbyDad03
>
I say Derby's point is valid. I have a Moore-Matic unit in my
current garage that is 24 years old and has no electric eye sensor.
I also have installed Sears units from back in the early 80s that had
no electric eye sensors. I'm sure there are pleny of other ones out
there that are still in use before the saftey reqt became mandatory.
DerbyDad03
>
My statement was made as a general observation, which may not fit this
particular instance. I was merely pointing out that the "electric eye"
seems to be mentioned in almost every answer to GDO questions, with
rarely a "If you have sensors..." as part of the answer. It appears
that just about everyone assumes that every GDO in use today has
sensors.
My 198x Craftsman doesn't and the GDO's for the garage I store my
trailer in (GDO brands unknown) don't. It's a 2 car garage with 2
different brands of GDO's and neither of them have sensors.
My only point was that not all GDO in operation today have sensors, so
any suggestion that involves the electric eye probably should say
something like "If your model has sensors..." or "Assuming your model
has sensors..."
Keep in mind that in many cases we are answering questions for folks
without a clue so it might save some back-and-forth if we clarify that
point upfront.
That's all...no biggy.
jamesgangnc
>
I have a liftmaster without sensors. Liftmaster made gdos before
sensors were required. And mine is only 18 years old so I'm thinking
there are plenty still out there.
Smitty Two
wrote:
>
> The Sears/Craftsman openers are Liftmaster. I have one and it does not
> have electric eyes. There is an adjustment for downward force
> sensitivity. You adjust it by closing the door on a roll of paper
> towel used to represent the family cat being squashed.
Cats aren't quite as stupid as babies. I don't think a million
chimpanzees closing a million garage doors a million times could squish
a cat.
Dimitrios Paskoudniakis
"pacca" <tp...@nospam.com> wrote in message
news:hcpfnq$gtk$1...@news.eternal-september.org...
>I have lift-master garage door opener , at times when I close the door it
>will reverse it self when it reaches the bottom , it's a chain drive 1/2
>horse opener, any body have had this problem.Thanks
this past week on 2 of my 3 doors, and that did the trick for both.
Brandon
> I have lift-mastergaragedooropener , at times when I close thedoorit
> will reverse it self when it reaches the bottom , it's a chain drive 1/2
> horse opener, any body have had this problem.Thanks
Try DFW Garage Door & Opener Repair for all of your Garage Door
Solutions
http://dallas.craigslist.org/dal/hss/1459624231.html
cl...@snyder.on.ca
Either the limit switch is out of adjustment or the current sense is
set too low or both.