Chamberlain Powerdrive PD422D 1/2 HP Security Plus Screw Drive Garage Door Opener "whisper drive door opener hold" Questions

Whisper Belt Drive The belt drive on my garage door opener keeps slipping off the pulley. The garage door will not open with the opener. I have put the belt back on the pulley and attempted to tighten

...Whisper Drive 1/2 Hp opener has an issue. My motion sensor back light blinks and the factory supplied remote does not work now. Help. You wall control is in lock mode sounds like press and hold the ...

...Whisper garage door system that only closes 3/4... then pops back open. Nothing blocking sensors, though one sensor has either a green or yellow light at various times. Does this mean sensor has gone ...

Whisper Drive guess what I also have the same problem with it as the cold has set it. Disconnect the door from the drive and see if it works without a load. Check the sensor performance. This can rule