Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
Keypad became sort of intermittent, had to key in numbers twice. Stopped working, replaced battery and it worked for one day. Swapped out battery but it still is not working. Is there a reset?
If the battery isn't the problem, you might try this:
Enter a four-digit code on your keypad and press and hold the "Enter" button. Continue holding down the Enter button while someone else is on the ladder who will push the (red square button on our box) button in on the control box. After the light stops flashing, both persons can let go of the button. My husband and I did this and it worked!
We tried this solution and it worked
Posted on Mar 07, 2010
A few questions...
Does the remote work very close to the garage, but not farther away - If so, then likely IS a battery problem....
Is the weather very cold where you live? - battery strength diminished quite a bit in the cold (try keeping the remote indoors for awhile & see what the results are). Also could be moisture in your unit - keep it inside & on a warm ( but NOT HOT ) surface for a day or 2
Did you get a good battery with an indicated shelf-life that is a couple of years into the future? (some 'dollar store' batteries are not very good). Also Alkaline batteries (if permitted by the user manual) are quite a bit more powerful than even the 'heavy duty' batteries of the same brand.
Finally, Is your unit at the garage powered electrically, or is it a battery also? If the garage portion is battery operated, try replacing that battery (in your receiving unit).
Hope at least 1 of these ideas helps...
Posted on Jan 05, 2008
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Posted on Jan 02, 2017
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