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

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Quantam #3212 garage door opener stops beabout 1 foot from top

Garage door opener -
Model quantam #3212 - will not open all the way up - stops about a foot before the top - is there an adjustment that can be made?

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There are two limit adjustments on the opener. usually the screw show which way to turn if the door needs to be lowered more or raised more. Turn them only about a1/4 turn with each adjustment.

Posted on Jan 15, 2009

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I cannot get my universal Clicker by Chamberlain KLIK1U to work with my Quantum 3212 garage door opener even though it says that it works with this model. I have followed the instructions and tried...


The klik1u does not operate at a 303mhz frequency therefore it will NOT program to the quantum 3212 but the actual remote from Wayne Dalton is only 2 dollars more than wal mart charged me for the klik1u when I bought it to try

Jan 10, 2011 | Sears Craftsman LiftMaster Chamberlain...

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Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+: garage door opener only runs for a foot or two and...


Check to make sure you don't have a broken door spring and also remove the cover from the motor unit and check the drive gear. It is a white nylon gear just in front of the motor and may be stripped.

May 17, 2010 | Sears Craftsman LiftMaster Chamberlain...

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I have a Quanton (3212) garage door opener. The


Hi,

We need to reset the opener unit on the wall. Unplug the wall unit. Wait for atleast 2 min. Then plugin again. Try the remote. This could solve your problem.

If it is still not working, you need to re-program the remote control to the power head.
Use the following steps:
Press the "PROGRAM" button on the garage door motor head unit once. A light "PROGRAM STATUS" will tell you that you have done so. The light will be on for around a min. In this time press the button on your remote. The light will turn off. Try opening the door with the remote now. Repeat if required. If this does not work, you will need to contact the dealer.

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Apr 22, 2010 | Universal Garage Wireless Keyless Entry...

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Craftsman garage door had a stripped gear so I


if the stops are not wrong.
they tell it how far to go up and down.

then I think the safety sensor is misaligned.
make sure the light on one side is pointed at the receiver on the other. maybe it is dirty or blocked.

good luck!

Jan 10, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Can i use the ''clicker'' model CLT1 with wayne dalton quantam 3316


It is compatible with Wayne Dalton opener manufactured between 1983 and 1987.

Oct 10, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Worked great the past 2 years. Now, garage door


Remove the cover and take a look at the drive gear. It is white nylon and is just in front of the motor. Most likely stripped.

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

2 Answers

Garage door opens about one foot and remains there.


Check the door springs. You could have a broken spring. Also remove the cover and check the drive gear. It is a white nylon gear just in front of the motor. It is possibly stripped. This is a good time to release the door from the opener and operate it by hand to see just how heavy it has become.

Jun 29, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door opens 1 foot, then stops.


It sure sounds like you have a broken door spring. While you are at it remove the cover and take a good look at the drive gear. It is white nylon and is just in front of the motor. Might be stripped and unable to take the weight of the door.

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

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