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888LM Constantly Beeping - Not Working
I hooked my 888LM to my Liftmaster 7675. I get the slow blinked red and yellow lights as described in the instructions. After about 30 seconds I get three beeps and both lights go out. Then the same process repeats for (as far as I can tell) forever... Red/yellow blinking for 30 seconds, three beeps, everything off. I can't seem to get anything working on the 888LM. When I hook up my previous controller (882LM) it works immediately. What am I doing wrong?
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The 888LM is not compatible to your garage door opener. It is only compatible to openers with a red and purple learn button. What feature of the 888LM are you trying to add to your opener?
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I wanted to use it with the 828LM so I could open/close my garage door from my phone. What is your recommendation for me to achieve this with my Liftmaster 7675?
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Can you double check your model number for me? I am unable to locate that model number in our system. The model number is located either under the front light cover or if you have light covers on each side of the motor head, it's under the side opposite the antenna wire.
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I just did some more research and it looks like I can connect the 828LM Internet Gateway directly to the 8355 opener. Can you confirm that? The other feature of the 888LM I was looking forward to was the motion sensor to control the light on the opener. Do you have a recommendation for that?
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You are correct. You don't need any additional accessories to add your opener to the Internet Gateway. You will add the 8355 directly to the gateway.
As far as a door control that gives you the motion detecting light feature, you need an 881LM. This gives you the light feature as well as our Timer-to-Close feature. This feature allows you to set it up so that once your door is opener for a certain amount of time, it will automatically close.
https://www.liftmaster.com/For-Homes/Accessories/Control-Panels/model-881LM -
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