Fix: Replace batteries or buy a new remote or receiver If the wall switch works but one of the remotes doesn't, check the batteries first. Still nothing? — You may need a new remote. Home centers carry a few models, and you can find a wide selection online. If you can't find one for your garage door opener model, you can try a universal remote or you can install a new receiver. A receiver replaces the radio frequency the opener uses with its own. An added bonus of a new recei