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MyQ 888LM just slowly flashes red and yellow then beeps
I have a Chamberlain HD420EV opener marked as MyQ compatable. I install the 888LM and after a few minutes it just slowly flashes red and yellow then beeps and will not operate the garage door. What can I do to fix this?
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The 888LM is not compatible with units that already have the MyQ technology, it is used to upgrade units that do not have MyQ technology already. The HD420EV only needs a Gateway to be able to use the app. We sell this and it is model CIGBU.
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I have the 828LM gateway, but it asks for a 10 digit serial number and the opener only has a nine digit serial number. How do I get them to hook up?
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I have done the 10 digit serial number for the gateway and I'm online with it, the issue is that I can't get the opener to connect to the gateway. I followed the instructions and pushed the learn button and it just times out. I've tried it at both the opener and the wall switch learn buttons - nothing. Very frustrating. Ideas? My gateway is located on the opposite side of the wall from the garage. I even tried the "WiFi" mode but as stated above there are only 9 digits. Help!
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At this point, I would suggest speaking with our tech support so that we can help you troubleshoot over the phone. If you could email me your contact information to myqcommunity@chamberlain.com, as well as the best day and time to contact you back at, I will have one of our reps contact you.
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