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

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I have a Chamberlain opener and it uses CR2032

I have a Chamberlain opener and it uses CR2032 batteries. The batteries go dead in a few days. Door works great. What causes batteries to go down in voltage. Door stops working when the batteries are approx. 1.86 volts. I purchased a pack of batteries and they read 3.0 volts.

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Something in your remote is using power all the time. You need to replace it.

Posted on Nov 16, 2009

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Posted on Jan 02, 2017

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How do you replace battery in chamberlain remote, garage door model 2487355


Do you have the Chamberlain 248735S garage door opener? Chamberlain doesn't have a 2487355 garage door opener; there are the 248735 and 248735S openers.

Most of the Chamberlain remotes are simple to open. Use the visor clip or a flat blade screwdriver to pry the two parts of the remote housing apart. There should be an open space on one edge of the short sides of the remote where you can insert the blade to begin separating the remote housing. Once started, you may be able to separate the rest of the housing by pulling the two sections apart with your hands. See page 32 of the user manual to see a picture of the separated remote or http://support.chamberlain.com/articles/How_To/How-do-I-remove-and-replace-the-battery-in-my-remote-control-1484145519292/?q=change+battery+in+remote&l=en_US&c=Brand%3AChamberlain&fs=Search&pn=1 for the procedure. Replace the battery with a 2032 coin cell battery, if you have the 248735S. Replace the battery with the correct replacement coin cell battery for other garage door opener models. Make sure that the side of the battery with the + faces the section of the remote housing with the buttons. The manual for the 248735S is currently here: https://www.chamberlain.com/CatalogResourcesV3/en-us/shared/files/tucmanuals/114A4256.pdf . Support and manuals for other models of Chamberlain garage door openers can be found from their support page: https://www.chamberlain.com/parts-and-support .

I hope this helps.

Cindy Wells

Jul 30, 2017 | Building Materials

1 Answer

Intermittent beeping sound


Check the main battery,it might be dead,beeping sound it a require a another battery.

Apr 14, 2010 | Chamberlain 1/2-HP Whisper Drive Belt...

1 Answer

Brand new sears GDO 3/4 hp DC motor with backup battery. One day all remotes work, external keypad, and homelink. Next day, ignores them all (!!??) have re-checked wiring, safety and wall switch. I get the...


The 3 flash error code is "Door control or wire shorted". Try disconnecting the wall control for a time and see if your problem quits. If you used staples on the wiring make sure they did not cut the insulation.

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

2 Answers

I have an old weiser powerbolt 3000 with a remote. my battery went dead in the remote and i lost it after removing it. can anyone tell me what battery the remote takes?


I have the Weiser Lock powerbolt 3000 Home Access system Model WLTX Garage door opener and the Battery is a Maxell CR2032 3 Volt. very common.

Nov 18, 2009 | Weiser Lock Locks & Locksmithing

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