Check each remote control to see if they all resemble the same problem.  If only one remote is not working, it could be as simple as replacing the battery.  However, if you have replaced the battery but still can not get the remote to work, then the garage door remote may need to be paired with the opener.  In the case that all remotes are not working, you may have a problem with the logic board or there may be an interference with the frequency.  We are here to hep!  Contact us and we will get you taken care of!