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

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Remote control opens garage door but will not close door - craftsman 53990d

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Have you checked the sensors? There is an electric eye type sensor- send on one side, receive on the other, usually located knee height or lower. If something is blocking it, or if they have been bumped and are not in line with each other, the door will not close. It is a safety check to keep the door from accidentally crushing anyone or thing that might be under it. On one, there is usually a tiny light that is steady if they are in contact, or it will blink if not. If blinking, just line them up until the light is steady.
There is a little wire attached to them bringing electricity and connecting them to the opener. If the sensors are connecting or are not lit at all, check that this wire is connected to the sensors and the opener.

Posted on Sep 12, 2009

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Posted on Jan 02, 2017

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Why wont my 3 remotes (hand held factory in remote)only work to open the door ? They no longer work to open the door.I did replaced the batteries and reprogramed, craftsman 3/4hp chain driven garage d


SOUNDS LIKE SOMEONE MAY HAVE PRESSED THE LOCK / VACATIONS SWITCH ON YOUR WALL CONTROL. IF STILL NOT WORKING AND THE LED IN THE WALL SWITCH IS NOT FLASHING TRY AGAIN TO PROGRAM YOUR REMOTES.

GOOD LUCK

STEVE

Dec 15, 2014 | Craftsman 3/4 Hp Garage Door Opener System...

1 Answer

What does the purple button light flashing on 1/2 horsepower craftsman garage door opener


I think the adjustment mode is on.

For example, that's from Craftsman manual:

""
Setting the Force
The force setting button is located on the left panel of the motor unit. The force setting measures the amount of force required to open and close the door.
1. Locate the purple button on the left panel of the motor unit (Figure 1).
2. Push the purple button twice to enter the opener into Force Adjustment Mode (Figure 2). The LED (Indicator Light) will flash quickly.
3. Push the remote control or control console (Figure 3). The door will travel to the DOWN (close) position.

""

Actually, you should just read carefully your garage door opener unit's manual.

Craftsman Garage Door Opener Remote

Jun 21, 2014 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I have a Sears craftsman model 139.53637SRT garage door opener. My remote has not worked in a long time. I use the wall control button and have to hold the button in order to open or close the garage door....


It sounds like your door sensors may be bad or misaligned. Make sure the small light on each sensor is lit and not flickering. That could be the cause of your having to hold the wall button down until the door is closed. You can buy a universal remote but if you only had one remote before it could be the receiver that has quit. A new remote would not fix that but the only way to find out is to try.

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

1 Answer

I really need your help. My Craftsman unit model number is 139.53615SR manufactured 1/92. I have a three car garage. The original two remote controls were lost and since then I've used the setting in my...


Have your neighbor bring over his remote and open or close your door with it. Then hold the smart/learn button in for 6 seconds on your opener. Then see if he can open your door. He shouldn't be able to because that procedure erases the memory in your opener. No remotes should work. You need to get that remote #53778 back and program it and then see if your neighbor can open your door. If he can open your door at any point after you have held that button in for 6 seconds you need to get a new door opener.

Oct 25, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door only closes halfway


If the main light is flashing 10 times when the door reverses when closing it is a door sensor problem. You can override this with the door control but not with a remote. Make sure the door sensors are pointed at one another and the small light on each one is on and not flickering.

Jul 07, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My Craftsman remote won't close my garage door


If the remote opens and closes while inside the garage but not outside , there are a few things it could be. Assuming it was working fine before..
1. weak battery in remote.
2. remote itself could be bad. (unless you have more than 1 remote acting the same)
3. Logic board in opener is going bad causing limited range.Is the wire that hangs down from the opener straightened out? That is your remote antenna.Some people have coiled or even cut it off..reducing range.
4. Less likely but this can happen- interference from another electronic device, wireless routers, cell phone, new appliances etc.. can reduce remote range. Any new electronics recently purchased?

Jan 28, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman Model 139.53684 Security+ Keyless Entry Garage Door Opener... Green light flashing on door control push button. Remotes no longer work. Can open and close garage door from keypad. Why is light...


To answer your question the opener is in vacation mode. Press and hold for 3 seconds the button on your wall control with the lock icon. The green light will stop flashing and you will be back in business.

Dec 08, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Remote Control closes garage door but does not open


It sounds like a case of your keypad losing signal strength enough that it cannot transmit through the closed door. If a new battery doesn't do the job a new keypad will.

Sep 12, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door will open with remotes, but not with the wall switch


Sure sounds like the wall control is bad. Very common problem.

Jun 12, 2009 | Sears Craftsman LiftMaster Chamberlain...

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