Repeat the adjustment and screening procedure right up until the door closes firmly towards the ground with no gaps and without the need of reversing. On the list of standout options in the Chamberlain Whisper Drive one/2 Hp Belt Drive Garage Door Opener is its whisper-quiet operation. Not like chain https://youtu.be/wSkWTAdm-Gg?si=pR5EXdjVuNYjtHN7