Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

1 Answer

Can't reattach the door to the trolley and grinding noise, won't move

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 3,197 Answers

Pull straight down on the rope and release. Then you should be able to run the opener and the two halves of the trolley will click together. Sometimes you need move the door by hand to get this done. The grinding noise is most likely the drive gear stripping. Remove the cover from the motor unit and it should be obvious.

Posted on Oct 04, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Garage door opener trolley keeps shearing off. Had it replaced a year ago, and I noticed that it is making a grinding noise and I can see it is halfway sheared off again.


issue with counterbalance springs. when you release trolley, door should balance at half way open. if i rises all the way on its own, or falls closed, then the springs are an issue and motor and trolley are working very hard in one direction or the other.

Oct 08, 2015 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

How do i fix garage door that wont open or close?


You have to make sure the trolley on the drive engages with the catch on the door. You may have to lift the door to the point it will engage while you are running the trolley in the close mode. Check that the trolley latch is open and ready to engage the catch. There is usually a rope to pull on to do this.

May 16, 2014 | Chamberlain 950CB Remote Control

1 Answer

Sears garage door opener model 139.53919


The torsion springs might need adjustment.

Pull emergency release, and manually lift door to half-open position.

When you release the door, it should stay in place.
If it almost "slams" down, the springs are not doing their job to "balance" the weight of the door itself.
The opener isn't designed to overcome the weight of the unsupported (no spring assist) door.

Over time, the springs take a "set", and might need a readjustment
THIS IS A JOB FOR PROFESSIONALS!!!
The springs are under tremendous pressure loading, and can even kill someone if they do not know what they are doing!

Feb 04, 2014 | Building Materials

1 Answer

Makes grinding noise and belt won't move


If it sounds like metal rotating on metal then it could be a a(roller bearings or b( motor bearings. LUBE INMEDIATELY. + DECK BELT LUBE VERY URGENTE, MAYBE YOU HAVE A WORN DECK TIME TO CHANGE THE BELT.

God bless you

Oct 01, 2012 | Proform 380 Treadmill Walking Belt

1 Answer

Replaced the mini belt without incident, actually pretty easy to do. Reinstalled the unit onto the screw and hung in place. Reinserted the wires by color and plugged in the power. The rack and connected...


Start over by removing the belt.

Release the door from the trolley.

Then slide the door/trolly latch mechanism toward the motor assy half way,

Reinstall the belt but not the door to the trolley.

Ativate the remote and where the door stops, assuming it is closing , is the lower/closed limit.

Remove the belt, again.

Then side the door latch mechanism near the end of the trolley.

Reinstall the belt and activate the remote.

It should be close enough to fine tune using the limit switches.

Jul 26, 2011 | liftmaster Chamberlain 20B17 Mini Drive...

1 Answer

My craftsman automatic garage door opener made an odd humm noise after I pushed the button and it stopped opening. I helped it open up. after pushing the button again to go down, it just made the same...


Hello. Plug the motor back in but do not attach the door to the trolley. See if the motor runs the trolley up and down. Also manually run the door up and down a few times to check and see if there is anything binding. If there is binding, find the problem, often a loose wheel, also grease the track and lube the wheels with WD-40 penetrating oil. Finally, if the motor runs the trolley up and down with no problem but bawks when the door is attached to the trolley your motor is on it;'s last legs and needs to be replaced. J.

Jun 21, 2010 | Garden

1 Answer

My 1610 printer is showing a paper jam message and there is none. There is a grinding noise and ink is not moving.


Please remove the rear access door (press in the tab on the left side of the rear access door and then pull the doow away from the product to remove it.

Now gently pull any jammed paper out of the rollers inside the product and reattach the rear door

Please all I ask is call back and just gave a vote, it will gave me some satisfaction to know am helping some one, so I will keep on helping.

Thank you

TechSaver

Feb 12, 2010 | HP PSC 1610 All-In-One InkJet Printer

1 Answer

Craftsman garage door opener 1/2 hp will not open door


It sounds like your chain is out of sync with the limit switches. Loosen the chain enough so that you can remove it from the sprocket on top of the motor unit. Now run the opener until the sprocket runs counterclockwise and stops. Now with everything attached and the door in the open position replace and tighten the chain. You are now in sync. You may need to tweak the up and down limit controls which are on the side of the motor unit.

Aug 16, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door opens all the way only closes half way down


Hi,
Some of your comments look like they're missing but from what I can see you had to put chain back on and now the door doesn't close all the way.take the cover off and look at the limit switch,this the travel adjustment. The switch for the close side is making contact too soon so it shuts off early.You need to adjust contacts so its further away. Depending on where the trolley was when you reattached the chain, you might not be able to adjust it back enough.But try it first. If you still come up short you will have to take the chain back off and move the trolley back to where the door would be closed and reattach chain. now open position will probably need adjustment leave door unhooked and just let trolley move in case it over shoots the mark either way.

Apr 28, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage opener/ brand garage master 1/3 HP


trolley is not attatced to the chain, grab that red rope that is hanging down and give it a ****. run the door up until it re-locks onto they trolley

Mar 22, 2008 | Sears Craftsman LiftMaster Chamberlain...

Not finding what you are looking for?
Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+ Logo

234 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sears Building Materials Experts

Glenn Mayer
Glenn Mayer

Level 2 Expert

91 Answers

Mike

Level 3 Expert

4340 Answers

Cindy Wells

Level 3 Expert

5187 Answers

Are you a Sears Building Material Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...