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

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Have model3585 3/4 HP liftmaster door works lights do not

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Liftmaster Model 1355 suddenly only works from remotes (3) sporadically. Changed light from led to incad. but did not help.


try leaving bulbs out a bad socket can cause range issues. also a bad ground on the wall/ceiling outlet can also cause problems.

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I have a Craftsman Keyless entry model 132B2386-6 with flashing lights, wont open. Already put in new battery still doesn't work


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Mar 27, 2008 - I have a Craftsman Security+ Keyless Entry, P/N 139.53684 purchased with my ... However, the door will not open, but the keypad flashes as before. ... Check if there is a flashing green light on your wall control in the garage. ... The 2 remotegarage door openers won't open or close the garage door; but the ...

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Hi, I have a Craftsman 1/2 HP garage door with keyless entry (P/N ... When I click theremote or the wired button, the main lights come on, the motor moves ... Five flashes means that the RPM sensors has most likely stop communicating.

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https://www.liftmaster.com/Customer-Support/Videos

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How to synch remotes on a Liftmaster 1/2 HP Security + garage Door opener


Click the learn button on the receiver followed by the remote. See e.g. http://www.liftmaster.com/CatalogResourcesV3/en-us/shared/files/tucmanuals/114A4109.pdf

Jul 25, 2014 | liftmaster Chamberlain Garage Door Opener...

1 Answer

LiftMaster Pro 1/2 hp 41AS050-1 won't shut. when


Check the resistance down button (There is one for down and another one for up). You may need to adjust the sensitivity. That way even if for some reason the have hard time coming down, less sensitivity may solve that issue.

Oct 22, 2013 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Liftmaster 1/2 HP Garage Door opener won't open or close. Has been working fine until I pulled out this morning. The door will move freely if I disengage from opener. Went up ladder to see chain not...


The shaft on these garage door motors are not direct drive systems. You'll have to open up the box to see what the actual problem is. I have had stuff like this happen where a gear just slipped out of place.

http://www.aaadooropeners.com/?gclid=CLH3wt628p8CFVZS2goduwSLYQ

Here is a link for a parts supplier. I don't know your model but it looks like most of the Liftmaster worm screw gears and drive gears are plastic so it's possible that one of them has cracked.

Feb 14, 2010 | liftmaster Chamberlain Garage Door Opener...

1 Answer

My liftmaster 2265 1/2 hp remote does not close


If the door starts to close and the main light flashes 10 times and the door reverses to the open position it is a problem with the door sensors. Make sure they are pointed at one another and they each have a small light that must be on and not flickering.

If it starts to close but reverses and the main light does not flash 10 times it is possibly the RPM sensor which is a small printed circuit board just in front of the motor.

Nov 11, 2009 | Sears Craftsman LiftMaster Chamberlain...

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Liftmaster 1/3 HP - humming, but does not open.


It's the gear drive. There are kits online for about $40, if you're semi-handy you can replace it yourself. Search for liftmaster replacement parts.

Oct 17, 2008 | Sears Craftsman LiftMaster Chamberlain...

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