The answer don sent is correct.
Craftsman garage door opener learn button flashing.
For some units lockout mode produces a flashing button.
One is the arrow keys found on the opener and the second is through the small led light located next to the learn button.
Button or wall panel push button is flashing.
If your garage door opener is still blinking try realigning the safety reversing sensors.
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The chamberlain liftmaster craftsman garage door opener wall buttons will flash when the opener is placed in lock out mode.
Once you see the double flash press the control button on the remote control.
Once you push this button the light on the garage door opener will flash twice.
Craftsman garage door openers are trusted to do what you need them to do.
If your garage door opener has a yellow learn button it utilizes the security 2 0 technology.
The garage door opener flashing wall button is completely different from photo cell led light being out or the motor head led light flashing.
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The location of the switch will depend on the model of the device.
Craftsman garage door openers flash the led next to the learn button to indicate a component failure.
If the learn led is flashing pausing and flashing again it is flashing an error code.
Here are the most common problem indicators and solutions for common garage door openers.
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This led light flashes a specific number of times.
I am sending you an image showing what the flashes of the learn led mean.
Replacement remotes for your unit must also utilize the security 2 0 technology.
Non stop flashing indicates rf interference in the area.
The led functions as a diagnostic indicator by slowly flashing a failure code continually every eight seconds until the fault is corrected the garage door opener is reset or the necessary parts are replaced.
Liftmaster light blinking liftmaster comes with two methods of self diagnosis.
The constantly flashing wall button simply means that the door was either put into lock out mode by someone using the wall panel control or for some reason it defaulted into lock.
If this doesn t fix your problem then the problem is more than likely the safety reversing sensors.
Look for labeling such as vacation on the unit then press and hold this button.