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

...garage door will only open 1/4 if the way I have a chamberlain whisper door opener. When i use the door remote or type in my code the door will only open a 1/4 of the way. Not sure what to do at all. ...

...Whisper garage door closes 3/4 then pops open sensors not blocked, but one has green or yellow light at alternating times. does sensor need to be replaced? check the wiring if its ok you need new ...

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 garage door opener. It was working fine until the emergency release was pulled while the door was in the open position. Now the door will open without a problem but the door seperates ...

Whisper Garage Door Closer. When I press the button to close the garage door the light flashes and I have to go to the wall control and shut it that way. Why is it doing this? Also, How do I repregram

chamberlin whisper drive 3800 When either remote is deployed nothing happens. When inside door switch is pressed unit clicks but door does not move. may be bad logic board. is trolley jammed?

...whisper drive. I have noticed that in the middle of the night sometimes the light on the opener comes on for a few minutes. There are no rodents or anything in my garage that could be setting off the ...

Whisper Drive not working As of today my Whgisper Drive unit will not complete an open or shut cycle. It starts when the remote, or keypad is used, then after 2 seconds it stops and the lights on the ...

chamberlain whisper drive plus didnt open, looked at sesors upon looking at sesors one is green solid light and one is amber color , does the sesors need to be adjusted to line up or is there another ...

...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 ...