Building Materials - Recent Questions, Troubleshooting & Support
Garage door opens by itself
From Chamberlain's website: There are a few different things that can cause this type of problem.
at the LED light next to the SMART/LEARN button on the motor unit. If
you are facing the garage door, the SMART/LEARN button is located on
the rear end or right hand side panel of the motor unit. You may need
to remove a light lens cover in order to see it. This button is either
purple, red/orange, green, yellow, grey, or white in color. If the
light is flashing rapidly this means you have a stuck button on one of
your remote controls. Take the batteries out of each remote control.
When you remove the batteries from the bad remote, the light will stop
flashing. This remote needs to be replaced.
- If one of your
neighbor's remote controls is inadvertently programmed into your
receiver, your door will open when their remote is activated. If this
happens you will need to clear out your receiver and reprogram your
- Press and hold the LEARN button for six seconds, or until you see the small LED light near the button turn itself off.
the above steps have been followed and the symptoms continue, there may
be an electronic short in either the wall control button or the
receiver logic board. In this case, remove the wall control wires from
terminals one and two (or red and white) on the motor unit. Should the
symptoms persist after the wires are removed, replace the receiver
logic board. If the symptoms stop with the wall control wires removed
from the motor unit, replace the wall control button, and the wires
leading to the wall control button.
on Mar 08, 2019
I have error code 41 - excessive closing force detected - on my chamberlain garage door opener.
The first step would be disconnecting the opener from the door by pulling the red emergency release cord. Lift the door half way open (manually). It should sit right where it is. If your torsion springs are set too hot the door will drift up and will be hard to get closed (by hand). That would explain your opener working extra hard to push the door down.
You could also have the perimeter seals installed too tight, or possibly an obstruction in the tracks. Even cold weather (ice) getting between the joints of the door during operation can cause that. Finally, tracks that are misaligned or bent especially around the curved radius.
on Mar 07, 2019
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