Hello: I have a long ranger 3, 220 volt control that I use on my dust collector. It has worked just fine for me since I got it new 3 years ago. Now it does not respond at all. I replaced the batteries in the remote, pressed the reset button on the bottem of the base unit but it still doesnt work. Are there any ideas out there about what to do or is this thing classified as a disposable non repairable thing that just has to be replaced. I would add that it is a handy thing to have when it does work. Thanks Jared