If your garage door opener uses a keypad and that keypad stops working then there are a few things you can do to get it functioning again.
Garage door intermittenly working.
First check the sensor lights.
As with many such problems the most common problem is the simplest one the motor unit has been unplugged.
Depending on the brand.
The solutions firstly check that you re using it within the range required for your opener.
If the remote works only when held within a few feet of the motor unit rf interference is probably the problem.
Locate and eliminate the source of the rf interference.
When the garage door opener works intermittently the logic board may be experiencing radio frequency rf interference from nearby sources such as security lights ham radios and some electronics.
When the garage door doesn t budge at all when the remote or wall switch pressed it s almost certain the power source has been disrupted in some way.
If the batteries in your transmitter are dead the transmitter won t be able to send a signal to your garage door to open.