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

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Garage door opener key pad not working

Hey there i have a craftsman 1/2 horse power garage door opener with a wireless key pad.garage door opener #41a5021-3e trouble is that we havent used the key pad since we have lived here 2 1/2 years and i just replaced the battery and nothing happens no lighting up of the keys or anything. is the keypad toast and if so where would i find a replacement here in canada opener from 06/00

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So i spent the better part of this morning trying to figure this same thing out... here's what I found.

You need to identify the serial number, which is found on the unit hanging from the ceiling... it will be like a 13953970. I found mine behind the lamp light protector thing. NOT the back with the stickers. 41A5021 is actually not the number that is important.

then go to www.managemyhome.com its a website ran by sears. you have to register, for free. then go look for manuals, in one of the tabs running across the top of the site is a choice for manuals. then search by Craftsman then enter the serial number.

then pull up the owners manual and check out the instructions.

** i found out that the old house i bought did not actually have the same keypad opener as came with the craftsman. so i had to closely inspect all sides of the internal keypad opener (not the one outside) and find another serial number. then i went and got the manual from www.managemyhome.com and realized i needed to add a new 9-V battery before I could proceed. So now i'm heading out to walmart to get that.

after a frusterating morning of service number and internet searches I hope after I get this damned battery the clouds will part and god will shine some luck on me.

goodluck to yourself!

Posted on Sep 29, 2008

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The motor in the openner is not running at all, 1/2 horse power crafman. 315mhz garage door openner,model 139.53914D


Have you checked the house circuit breaker? Do the lights come on? Is the door stuck in the open position?

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1 Answer

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It sounds like for some reason the receiver has lost the stored codes for your remote transmitters. The wired button goes right to the opener so it continues to work.

On the back of the opener you'll see a small pushbutton. Press it and the indicator light nearby will come on. While this light is on, press the button on your remote. The light will go out and the code is stored. Repeat this for each remote. The process is the same for the keypad, except that you need to enter your desired 4-digit code.

If this programming doesn't work you'll need to replace the receiver board. Like any other piece of computerized equipment, it can fail or be damaged by power line problems. But try reprogramming first, as that's the most likely solution.

If this has helped you, please take a moment to rate the solution. Thanks for asking here!

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1 Answer

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