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

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Have to hold the button down for it to close and open and its opening to far hitting the motor and light guard

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Make sure the door sensors are pointed at one another and the small light on each one is lit and not flickering. If you can't get both lights to come on then one of the sensors or the wiring to them is bad.

On the side of the motor unit you will find the 'up limit' control. Turn this control 2 full turns in the opposite direction of the arrow printed on the cover.

Posted on May 14, 2010

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I have an older craftsman garage door opener that I just replaced the drive gear on. Everything seems to be working properly except that it will not go down unless you hold the button down until it closes...


Make sure you put the black cup back on the end of the motor shaft and that it is pressed all the way on. Make sure the RPM sensor is plugged in. If neither of these are the issue, then you probably did not have the motor shaft pushed all the way back when you tightened the coupler after replacing the worm gear. Loosen that coupler up and from the front of the motor (opposite end in which the coupler is on) push the shaft back as far as it will go. Hold it there while you tighten the coupler back up and then try it.

Oct 15, 2011 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

My Craftsman garage door opener opens fine. It


It could be closing too far or the sensitivity could be set too sensitive.

Lube the springs, wd-40 rust may be the whole problem.

If the door hits and the opener continues to move until the rail flexes upward and then reverses - probably the travel adjustment.

Does the door close and stay closed if you hold the wall button down constant until it closes? - this would indicate a safety eye problem.

If the door reverses before it hits the floor or just as it hits the floor it could be the sensitivity or if the safety eyes are mounted to the track they could be flexing enough to move the eyes out of alignment.

Hope this helps.


Jul 11, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Door closes to fast and sometimes re-opens by itself


A couple possibilities here. Make sure the door spring isn't broken. Your door is traveling too far in the down direction and when it hits the floor the safety sensor reverses it to the open position. The down limit adjustment is on the side of the motor unit.

Jul 06, 2010 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Passenger window stuck down on chrysler grand voyager year 2004


NO COST and fast PROCEDURE TO FIX IT, if just one window stuck:

1. Sit in vehicle, on seat next to problematic window
2. Ignition key is on
3. Door in question is opened (in case you closed it)
4. While door is open, press and hold power window button in desired window travel, keep button pressed !!
5. SLAM hard the door closed with one hand while other hand holds button as per #4.
6. Watch window operate as it should.

7. Repeat 3-6 if necessary, but usually the first try works!

This way, try this first before spending $ at the dealer, or taking door apart to hit motor. as mentioned above post.

May 29, 2010 | 2002 Chrysler Town & Country

1 Answer

Have to hold the button down for it to close and open and its opening to far hitting the motor and light guard


To correct the opening too far, locate the 'up limit' on the side of the motor unit and turn this control 2 full turns in the opposite direction of the arrow printed on the cover.

If you have to hold the wall control button to get the door to close it is your door sensors. Make sure they are pointed at one another and that the small light on each one is lit and not flickering. Tweak them a bit if necessary.

Mar 20, 2010 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

GARAGE DOOR CLOSES TO THE FLOOR AND OPENS ALL THE


If the garage door is hitting the floor and reversing to the open position you need to adjust the 'down limit' which is on the side of the motor unit. Turn it in the opposite direction of the arrow printed on the cover. A little tweaking should get it just right.

Aug 05, 2009 | Sears Craftsman LiftMaster Chamberlain...

3 Answers

Door dosent close.move about 1 ft then opens.gear was replaced prior.worked for 2 days.now will not close.no flashing warning lights,when door disconnected garage door ok, springs ok,disconnect chain from...


You may not have had the motor shaft pushed all the way back when you tightened the coupler after replacing the worm gear. Loosen the coupler up and from the front of the motor (opposite end in which the coupler is on) push the shaft back as far as it will go. Hold it there while you tighten the coupler back up and then try it.

Jul 24, 2009 | Sears Craftsman LiftMaster Chamberlain...

3 Answers

Volvo V7 '01 sunroof will not stop in closed position


I think I know the answer....your gear has slipped on the cable a few teeth. Set the roof to the desired closed position, flush with your roof. Then open the panel above the mirror by first prying off the switch plate and removing the two 10mm bolts holding the mirror. Remove the sunroof motor gear, or rather just lower it out so it is disengaged with the cables. Now connect the switch and hit the auto open button as if you wanted to open the roof with single flick of the switch. Now hit the auto close button (same button of course, but the single touch method). The motor will advance and stop to where it thinks the roof should be, closed, which it is. Reassemble the gear into the slot, test it if all good, replace the mirror and panel.
Good luck.
Manfred.

May 10, 2009 | 2001 Volvo V70

1 Answer

Driver's visor 3 buttons what for and how do i use it infiniti i30


Those buttons are for you to be able to program your garage door opener so that you don't need to have to original clipped to your visor all the time. The procedure is this: 1) put the key in ignition in postition 2 (car not running) 
 
2) hold down both homelink buttons on the outsides of the homelink transmitter (to reset any existing codes) you might have to do it for 20-30 seconds. Red light on homelink will flash rapidly then let go. 
 3) Now, with the garage remote in one hand and hold the button on the homelink you want to program (keep holding homelink until it pulses, not a rapid flash, takes about 20 sec.) While it is pulsing, hold down the garage opener as close to the homeling button as possible while depressing door opener button also.
 
Shortly after doing this you will see the homelink start to flash rapidly (this means it is learning the code). 
 
-  let go of both buttons once it is flashing rapidly and 
 
4) go to motor of door opener and hit the learn button (a light should turn on)
 
5)return to the car a press the homelink button you programmed once, twice, or maybe up to three times until you see garage door open/close.


You may need to have someone help you with this procedure.

Apr 15, 2009 | Infiniti I35 Cars & Trucks

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