A garage door opener remote is a small, hand-held electronic device that makes it possible for people to park in the garage without necessarily leaving the comfort of their vehicles to open the garage door manually. Your garage door opener will only receive signal transmissions from this device when you are within the specified car length.
But, if you are within typical range and your garage door opener remote still won't work, then the device may be experiencing some problems. Here is what you can do to find out what the problems might be:
Use the wall-mounted switch to test if it can open the garage door.
Without power supply, a garage door opener will not respond to the signal transmissions from the remote garage door opener. Therefore, power supply to the garage door opener is the first thing that you should look out for when your remote is not working. If your hard-wired, wall-mounted switch does not manually open the garage door, then the problem may extend beyond your remote control device. There may be an issue with the signal receiver that is connected to the garage door opener's motor. Or perhaps, the opener's transformer or logic board may be faulty.
However, if the manual wall switch is functioning normally, and you have failed at quickly fixing the problem by checking the batteries (defective batteries will often form a layer of corrosion that prevents the battery from making proper contact with the remote's power terminals and should be replaced immediately), then your remote may need to be reset.
Resetting your remote.
If you had experienced a power outage earlier on, the remote may have lost its programming and will need to be reprogrammed. If you have the owner's manual provided by the manufacturer, follow the step-by-step instructions provided to reset the remote back to the radio frequencies required to open your garage door.
Replace the remote with a reliable brand.
Still nothing? Garage door opener remotes, just like many other electronic devices, have a limited lifespan; they do get damaged, become worn out or are sometimes mishandled. Sooner or later, the device itself or its signal receiver will reach the end of their useful life and stop working! When this happens, you should be ready to get a replacement that will work well with your garage door opener. You can consult your garage door opener's manufacturer to get a compatible replacement brand.