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

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Adjustment of a Chamberlain WD822KL

I replaced the lift springs on my garage door and now the belt on my Chamberlain Whisper Drive WD822 KL is really tight and the opener is not quiet anymore. The door still closes down perfectly tight against the floor and lifts perfectly to the correct level. Is there an adjustment you can recommend?

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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

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The spring needs a few more turns call the person who insfalled it before if wears out the gears in your opener

Posted on Feb 01, 2014

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1 Answer

I have the 3/4 Whisper Drive Plus. It will open about 3-5 inches then close and open 3-5 in and stay that way. Springs look OK and i pulled rip cord and was able to open an close manually. Help


It could be as simple as a drive motor force adjustment...
(you will have to get out the instruction manual)

Most likely your balance spring... one has failed

look over your springs very carefully... if one has shattered your counter-weigh is only lifting HALF the weight of your door.

Most garage doors need to be fairly NEUTRALLY BALANCED for the best, longest and reliable use.

Routine lubrication of the springs can add decades of useful life to your springs... CHATTERING Springs make a lot of noise and will soon shatter (break).

Sears makes house calls...
but they try to sell openers... you don't need.


https://www.bing.com/search?q=overhead%20garage%20door%20service&qs=n&form=QBRE&pq=overhead%20garage%20door%20service&sc=8-28&sp=-1&sk=&cvid=10E42AB45BFC41CC8E82D92DA893AB36 Sears Online In Store Shopping Appliances Clothing More

Oct 13, 2016 | Chamberlain 3/4-HP Whisper Drive Plus...

2 Answers

When i change my drive belt it gets shreded on start up


Sounds like either the belt is not tight or more likely your door balance is heavy ie fatigued/broken springs or its hung up somewhere.

Apr 16, 2014 | Chamberlain 1/2-HP Whisper Drive Belt...

1 Answer

My new installed garage door opener closes and opens right away


You have to adjust the safety pressure sensor. It is set to too light a pressure. Check your manual for the adjustment.

Mar 10, 2013 | Chamberlain 1/2-HP Whisper Drive Belt...

1 Answer

Just got used but new chamberlain whisper drive 1/2 belt drive, which wires hook up to what t


Find your manual here:

http://www.chamberlain.com/
It is very simple DIY with the manual.

Jan 17, 2013 | Chamberlain 1/2-HP Whisper Drive Belt...

1 Answer

Garage door won't close


Hi, Check that the rollers are free of obstruction. Check Battery is installed correctly in remote. Also check the codes are set correctly. Hope that helps.

Nov 16, 2011 | Chamberlain 1/2-HP Whisper Drive Belt...

1 Answer

Chamberlain Power Drive / Whisper Drive My garage door starts to open and immediately reverses but continues to run. I had to release the cord to allow the chain to run its course before it would stop....


It sounds like the door is your problem.
Check the counter balance spring above the door. It is likely broken.
If the door cannot be operated manually, the garage door opener will not open it either. The machine is made to operate a door that works correctly. If the door is broken, the machine will not work either.
It also sounds like the opener gears may be worn out. That also occurs because the door required service.

Jan 02, 2011 | Chamberlain 1/2-HP Whisper Drive Belt...

1 Answer

My Chamberlain Whisper Drive bounces several times when it starts to close. It closes all the time, it just bounces at the beginning of the closing cycle. Can I stop the bouncing?


The door itself might be too "hot". Meaning the springs might bee too wound up or stretched out at the beginning of the cycle. The belt drive openers actually have a spring on the trolley to take up any slack vibration to legnthen the life of the motor and drive gear so this is not really a big deal unless it is severe. If it is I would hire a pro as the springs are the most dangerous part of a door and should be worked on by a qualified technician. Thanks BB

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

1 Answer

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

May 18, 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...

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