Liftmaster RemoteRecently we came across an opener that had been working great for years and then all of a sudden the door would only work if the remotes were within a couple feet of the garage door opener. This can often be the issue if a bad battery is being used in the remote, but what has been becoming more common is Frequency Interference. This can be caused by a multitude of reasons and is and extremely tough problem to resolve without changing either the radio board or the entire opener. After going over all the options it was decided that replacement opener that runs on a new frequency would be the best bet.