3. Clean up the sensors: Make use of a soft, cleanse cloth to wipe the sensors and remove any Filth or debris Which might be affecting their functionality. On the list of standout characteristics from the Chamberlain Whisper Drive one/2 Hp Belt Drive Garage Door Opener is its whisper-silent operation. https://youtu.be/wSkWTAdm-Gg?si=pR5EXdjVuNYjtHN7