Liftmaster gate opener CSW200501U + 2 877LM remotes with the same PIN

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  • Updated 5 months ago
I have a Liftmaster gate opener CSW200501U and I'm trying to get two 877LM remotes programmed to use the same PIN, but it's not working for me for some reason.  

I can program 1 877LM, say with PIN 1234.  And when I go to program the 2nd 877LM remote with the same PIN (1234), the PIN on first 877LM will NOT work.  The light on it will blink repeatedly.

There's nothing in the manual that will show me how to make this work.

Is there a way?  Thanks in advance.
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Tom

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Posted 5 months ago

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