Most likely this will resolve the situation.
Garage door opener wall switch blinking.
If an operational problem exists and the garage door opener will not close the opener can be forced to close.
To unlock your garage door opener push the lock button for 5 seconds.
It s important to note that when the lock button is on your garage door opener will only work from the switch located by the door.
Press and hold the wall console button until the garage door is completey closed.
The remote control will not work.
The garage door opener flashing wall button is completely different from photo cell led light being out or the motor head led.
An open door will not close if the infrared beam is broken.
Door starts down then stops before it is closed.
Liftmaster garage door opener when the door button or wall panel push button is flashing.
Once you push this button the light on the garage door opener will flash twice.
If that isn t the problem then try opening and closing the door with the wall switch.
If you try to open your door using a remote while the lock system is engaged you ll notice that the garage door light will begin blinking continuously.
Check for interference from adjacent photo eye sensors of any brand.
The locking feature is meant to prevent garage door remotes from opening your door.
Troubleshooting a liftmaster opener with a flashing light involves inspection of the safety reverse sensing system.
Is your garage door opener blinking.
Check garage door for binding.
Liftmaster motors will not operate when something obstructs the infrared beam between the safety sensors at the bottom of the garage door tracks.
In the case that the door responds to the switch then there s a good chance it s the remote that has an issue.
Can t figure out.
Depending on the model most work by connecting two to four wires onto terminals mounting the device on the wall and then plugging the unit into an electrical outlet.
Check out this simple video about how to fix this issue.
The solution might be simpler than you think.
A wall console unit for a garage door opener is not a complicated device so it s fairly simple to troubleshoot when something seems to go wrong.