Your garage door keypad is indeed battery operated despite being stuck to your wall.
Genie garage door keypad not working after changing battery.
See how to replace the battery in your garage door opener keypad.
If the screw inside the rail us turning and the carraige is engaged but the door is not moving replace the carriage.
If your keypad stops responding it might be possible that you re not really in need of a garage door keypad repair at all just open it up and swap out the battery.
If your garage door keypad is not working after you ve checked the batteries looked for frayed wires and examined the pad for broken or stuck keys then you might have to simply replace the keypad.
You can determine if your battery level is low by looking at the small led light above the keypad.
If it blinks red when you enter the code the battery is fine.
Most garage door keypads take a 9 volt battery though some do use a 12 volt.
Check to see if the emergency release cord was pulled recently check to see if the screw inside the rail is turning.
Nevertheless the battery will require replacement from time to time.
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Make sure the carriage is engaged.
If not re engage it.
The battery in your genie intellicode keypad does not have a specific replacement interval.
You also might want to consider replacing the whole system if it s old.