Chamberlain Whisper Drive Learn Button LearnAdvice.net. Chamberlain Whisper Drive Plus Learn Button Color – Push the wall button or the button programmed on the remote a third time and the garage door will close to the down/closed position. It is a rather popular door opener provided with a battery backup feature, that allows you to use the device when electric power goes off.
Purple learn buttons are the most widely used colored buttons on the market. Any opener installed in the last ten years will most likely be 315 MHz and have a purple button…
