Garage door openers operate by means of wireless remote controls that function similarly to the kind you use to operate your television. Wireless remote controls send radio signals to the garage door opener motor. A garage door keypad is likely hard-wired, but you will still need to program it, as well as choose and enter a PIN number (Personal Identification Number). Wiring, programming and entering the PIN number are all areas that can be problematic. Some troubleshooting tactics can help you get your garage door opening and closing smoothly.
Re-program the PIN. Press the "Learn" button on the motor unit. The indicator light will glow steadily for 30 seconds. Enter a four-digit PIN on the remote control, and then press and hold the "Enter" button. Release the button when the motor unit lights blink.
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Open the door using the wireless remote control and not the keypad. Using elimination, you will be able to identify the problem area. If the door opens with the remote, but not the keypad, then there is a problem with the keypad. Look for wiring problems, such as frayed wires, wires that have been snagged by a staple and other anomalies.
Enter the PIN and look for any lights on the motor that may be flashing in response. Some garage door motors have a lock function that may have been set inadvertently. Toggle the lock feature on and off to see if that corrects the problem.
Reboot the entire installation. Rebooting will clear any commands from the keypad that may have confused the motor. Unplug the motor, wait a minute and plug it back in again.