Have been helping my boss who is going thru a nasty divorce and trying to
help her secure her home. Her ex took the filecabinet with all the
paperwork and I can't figure out how her garage door opener works without
the manual. It is an Overhead Door unit and it says "model 456" on the
back. Her push button in the car has only one button, and I took it apart
and it has an array of toggle switches which I guess is how you change the
frequency. She said her ex has it programmed into his homelink so we need
to change and clear everything. On the back of the motor unit there is an
opening with three tiny black pushbuttons labelled "1-2-3" which my guess is
to set the code for three openers? I went on the web and cannot find any on
line support for this..I guess I can call the manufacturer but thought I
might get lucky and someone here might have one of these and might know how
to reset it.
Thanks a million...
The code for a door that old can be cracked anyway, and if the theory
is that the husband is foolish enough to open the door with his remote,
he's foolish enough to crack into it, there's some device you can get
that will do that.
The safer thing is get a new GDO or unplug the GDO and operate the door
manually. Barring that, the toggle switches on the remote probably
correspond to toggle switches someplace on the GDO unit, see how
they're set, write them down carefully, and try changing them in both
Hi there and thanks..
He isn't that sharp, if it doesn't work when he pushes the button, he
wouldn't know what to do..Hell he can't even change a broken sprinkler
I pulled the cover off the end and looked inside at the circuit board and
there isn't a corrosponding toggle board as is in the remote. That was my
first thought when I saw what. What I figure it must do, is you code the
remote by changing the switches, then put the opener in learn mode via those
black switches and train it to the new code. I just need to get the correct
procedure, specially to clear out the old codes...
To follow up on what the other poster said, if she wants to be sure
it's secure she should get a new receiver-transmitter. You should be
able to find a generic one that you can connect to the button and that
can't be cracked easily like the old ones. And be sure and disable
the old receiver so the old transmitter will no longer open the door.
Sure would help everyone if you had only posted who the manufacturer was
along with the model.
Unless the opener is ancient, or steam powered.
Most openers come out of the box "stupid" and won't respond to ANY remote
until they are "taught"
If you can find the procedure to clear out/reset all the remote codes, you
can start again and just "program" in your own.
No others "should" work.
Chances are the 1,2,3 buttons are to teach the opener to learn to recognize
3 different remotes.
The switches in the remotes themselves only get them to transmit the correct
frequency your opener recognizes, as most makes need different
Just as your tv remote wont likely operate your different make tv in the
I went to the site and got a number and called them..Nice lady walked me
thru the steps of how to override all the old presets and change her
remote..Once her life has settled she is planning on selling the house so I
don't think she would want to replace the door opener but thanks for the
suggestions..I too would recommend one with rolling codes I think..At least
we can keep her ex out! :-)
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