Question about liftmaster Chamberlain Garage Door Opener Transmitter 300MC

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HBW1241 Can Not Change Remote Battery

Hello, I can not open the back of the remote control to change the battery. Any suggestions? Thanks so much!

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  • noellead Apr 19, 2009

    I have the HBW1573, and have the exact same problem. There appear to be two places on the body of the remote where you can wedge a small coin (I tried a dime) to open it, but I can't budge it, and seem only to be damaging the plastic.....can anyone help?

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I have the same remote. You need to wedge in a flat-head screwdriver. Push it into the plastic and turn. This will release it from the catches. Now I just have to find out where to get the flat 1/2" lithium battery to replace it.

Posted on Aug 02, 2009

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9v Battery Compartment? Little screw under the battery perhaps?

Posted on Mar 11, 2009

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Posted on Jan 02, 2017

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1 Answer

How to fix digital stream remote control


1) try to change a new batteries by the same type of batteries and full charged
2) clean the contacts battery with contacts cleaner
3) retight the springs contacts battery with pliers for better contacts
4) resolder the wires contacts battery
5) open the remote control and clean the keypads switchs with contacts cleaner for dirty, dust, oxide, bad contacts, open contact with VOM and fix it. Remember they receive signal from Syscon and emite infrared signal to the receiver
Otherwise you mus go to the repair shop TV for fix it.
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How do you change the batteries?


Remove the Battery cover on the back of the remote. Remove the dead batteries. Put them in recycling Open the new batteries and install them paying attention to polarity. Replace battery cover

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Remote does not work unless I am in the garage. Outside the door it will not work.


hello emar... check to be sure that the little wire antenna is hanging down from the back of the garage door opener motor. Then check it. If it still won't work from outside, install new batteries.

If that doesn't do it, remove the new batteries and use the eraser end of a common pencil to clean the battery contacts inside the remote. then reinstall the new batteries and try it again.

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Setting up the remote control

WARNING: Keep the remote control battery away from children. It may cause a fire or

chemical burn if mishandled. Do not recharge, disassemble, heat above 100°C (212°F), or

incinerate. Dispose of used battery promptly. Replace only with a battery of the correct type

and model number.

Your remote control may be one of two types. Each is identified by the way

the battery compartment unlocks to install or replace the battery.

1. Place the remote control face down on a flat surface.

2. If your remote has a slot on the back, follow step A. Otherwise, follow step B:

A. Insert the tip of a ballpoint pen into the slot. Push to the side as shown and hold. Slide

the battery compartment open with your finger.

B. Using your finger, push the tab lock to the side as shown and hold. Slide the battery

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Setting Up

See operating

instructions for types of

battery to be used

Note: Use only a Duracell, Eveready, Maxell, or Toshiba CR2032 or DL2032 lithium battery

(available at electronics stores). If you have difficulty finding a replacement battery, contact

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3. Keeping the remote control face down, insert the new battery into the compartment with

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4. Gently slide the battery compartment closed. It locks automatically.

5. Use the supplied mounting strip if you want to attach the remote to a surface in your

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My chamberlaain security + garage door openers


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Hello, I have a LG 42" plasma and the remote control doesn't work with the tv. I just call LG and they said it shoul be the remote control sensor on the TV......I don't know. Do you have any...


Good Day;
LG might be correct, but try these suggestions first;
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