First check the sensor lights.
Garage door intermittenly working.
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.
Depending on the brand.
If the batteries in your transmitter are dead the transmitter won t be able to send a signal to your garage door to open.
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.
Locate and eliminate the source of the rf interference.
As with many such problems the most common problem is the simplest one the motor unit has been unplugged.
This may sound obvious but your garage door transmitters need power to work.
If the remote works only when held within a few feet of the motor unit rf interference is probably the problem.
First check to see if the transmitter on the wall inside your garage still opens your garage door when pressed.