Existing door opener and remote work fine. I purchased 61LM for second opener. Set dip switches, did not work. It is a auto programmer unit, so I tried the auto,program on the new 61LM, it worked the door ok, but then original remote would not open the door. Re check dip switches, no work.
I then set dip switches in opposite to original remote. Still can not get both remotes to work the overhead door.


Philip E Payne
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Televison & Video - Chamberlain - 950CB Remote Control