I have a Craftsman Door Opener manufactured 11/2002, Model 139.53975SRT1. I recently purchased a 888LM control and the 821LM gateway for remote access. The 888LM does not even light up or do anything with the door opener. I've tested the 888LM on a seperate Liftmaster opener manufactured in 2010 and it works fine. I reached out to Chamberlain support and they essentially told me sorry the 888LM is not compatible with your opener you need to buy a different MyQ unit. I've reread compatibility for the 888LM and it says door openers manufactured after 1998 with a red/orange learn button. Less than happy with the customer service/support that I received from Chamberlain. Has anyone else experienced this and can offer assistance because apparently Chamberlain only has interest in selling more products and not offering a useful solutions.
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