Question about Chamberlain 1/2-HP Whisper Drive Belt Drive Garage Access System

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Chamberlain Whisper Drive garage door opener - the belt doesn't move.

When I press the button on my garage door remote, the opener makes a sound as if the motor is running, but the belt doesn't move. I disengaged the opener by pulling on the red handle and my garage door opens and closes just fine. Inside the gdo, It sounds like a motor is running as it should, but does not seem to be engaging the belt. The belt appears taut and not loose. Suggestions??

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6 Suggested Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Hi there. I have a Chamberlain Whisper Drive

I just had that problem this morning and the cause was that the springs that help hold the weight of the garage door were broken. This caused the garage door opener to raise the garage door a fe inches and then drop again. We called in a professional and $200 later we had new springs and everything works fine now.

Posted on Dec 17, 2009

swolfinor
  • 504 Answers

SOURCE: door would not close all the way

DOES IT REVERSE OR STOPS BUT NOT TOUCHING THE FLOOR?

IF IT DOESN'T TOUCH THE FLOOR YOU EITHER NEED TO ADJUST THE DOWN TRAVEL OR LENGTHEN THE CONNECTING ARM.

IF IT REVERSES YOU NEED TO DETERMINE IF IT IS THE SENSITIVITY OR THE SAFETY EYES.

Posted on May 27, 2010

blanchettohd
  • 143 Answers

SOURCE: Adjustment of a Chamberlain WD822KL

The opener is having a hard time operating the door. It sounds like the door is out of balance. The door should stay all the way up at half down and all the way down. You should be able to raise and lower the door by hand EASILY. The opener is only meant to lift10-15 lbs. Thanks BB

Posted on Sep 06, 2010

blanchettohd
  • 143 Answers

SOURCE: The belt on my Chamberlain Whisper Drive dipping

Where the belt attaches to the trolley carriage which attaches to the door there is a black adjustment nut with a spring on it. Tighten it up more by turning it clockwise until the belt tightens up. The belt will droop a little when the door is all the way shut normally but should not during operation. If you tighten it up too much the belt will slap on the rail during operation. Make sure the spring is set on the adjustment screw too. This holds the belt tight over time. Thanks BB

Posted on Oct 11, 2010

  • 15 Answers

SOURCE: How can I disconnect the motion detector on the

There is a button on the side of the wall-mounted remote. It has a pic of light bulb next to it. Press it once - the motion sensor is on and the lights will be on once it senses the motion; press it again and the motion sensor will be off.

Posted on Nov 01, 2010

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1 Answer

The motor runs but it only opens a few inches and slowly goes back down its a chamberlain whisper drive model HD900D


Hi. I have seen this before, although usually not from chamberlain garage door openers.

Pull the release cord that unlocks the door from the opener, and manually open the door ALL the way open.

Then lock back in place in the open position.

Then use automatic opener to shut door.

It will close very slowly, but should close all the way.

Then, open the door again using the remote, and the door will once again open slowly, this time it should open all the way.

Then close door with remote, and door should now close as it is supposed, with the proper speed.

The slow opening and shutting is the system position sensor resetting itself.

This is why your door is acting up.

I would also look up by the belt drive connects to the front of the garage door opening, to make sure there isn't any dirt, cobwebs, or other obstructions on the sensor that may cause it to re-close the way it does.

Jan 24, 2011 | Chamberlain 1/2-HP Whisper Drive Belt...

1 Answer

I have a chamberlain whisper drive garage door opener. When I open the door and it reaches the top it starts making a loud noise. It's like the motor is still trying to pull the door up but it can't...


SOUNDS LIKE THE UP LIMIT IS EITHER OUT OF ADJUSTMENT OR NOT WORKING.

TURN IT ABOUT THREE TURNS COUNTER CLOCKWISE. THIS SHOULD BE ENOUGH TO MAKE IT NOT OPEN ALL THE WAY. THEN ADJUST IT 1/2 TURN AT A TIME THE OTHER WAY UNTIL IT GETS CLOSE THEN SMALLER ADJUSTMENTS TILL YOU ARE HAPPY WITH WHERE IT STOPS.

HOPE THIS HELPS

Nov 04, 2010 | Chamberlain 1/2-HP Whisper Drive Belt...

1 Answer

Where is the lock button on the wall button


I am not sure what you are referring to as "where". The "lock" button on the wall mounted remote is actually a very good security feature. Once pressed, no hand held remote will operate the door opener.

Sep 19, 2010 | Chamberlain 1/2-HP Whisper Drive Belt...

1 Answer

I need to change the key pad to my chamberlain whisper drive garage door opener. Recently got divorced and ex has the origional key pad entry number. I can not find anywhere that knows how to change it....


Press the colored learn button on the motor head until the led light by it goes out. This erases all old codes out. Make sure you have all the remotes handy too. -----Press and release the learn button and then press the button on the remote. For multiple remotes repeat from -----. For a keypad press and release the learn button and then within 30 seconds enter in the 4 digit code(different than the old one) and enter. This should do it. Thanks BB

Aug 29, 2010 | Chamberlain 1/2-HP Whisper Drive Belt...

2 Answers

(Chamberlain 1/2 hp Whisper Drive garage door opener) the garage mounted opener will open the door, but none of the remotes now work. batteries have been changed already. Is there a way to reprogram the...


If the wall button will operate the door up but none of the devices do then look at the wall button. Find the lock button and push it for 2 seconds and then try the remotes again. This is your vacation lock. You can get a manual at chamberlain.com. Now if the door does not open or close with the remotes you can reprogram them. Press the colored learn button on the motor head and then press the button on the remote. Repeat for each remote. If they fail to program you will need a new logic board. Thanks BB

Aug 18, 2010 | Chamberlain 1/2-HP Whisper Drive Belt...

1 Answer

How can I disconnect the motion detector on the Chamberlain 3/4 HPS Whisper Drive Plus Belt Drive Garage Door Opener with EverCharge


There is a button on the side of the wall-mounted remote. It has a pic of light bulb next to it. Press it once - the motion sensor is on and the lights will be on once it senses the motion; press it again and the motion sensor will be off.

Jul 19, 2010 | Chamberlain 1/2-HP Whisper Drive Belt...

1 Answer

Hi there. I have a Chamberlain Whisper Drive


I just had that problem this morning and the cause was that the springs that help hold the weight of the garage door were broken. This caused the garage door opener to raise the garage door a fe inches and then drop again. We called in a professional and $200 later we had new springs and everything works fine now.

Nov 07, 2009 | Chamberlain 1/2-HP Whisper Drive Belt...

1 Answer

Chamberlain Whisper Quiet garage remote won't work


There isn't a trick but you must make sure you got the right remotes for your opener. The receiver which is part of the logic board can quit working and it sounds like this may be the case in your situation.

Sep 14, 2009 | Sears Craftsman LiftMaster Chamberlain...

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