According to LiftMaster Accessory Compatibility Chart:
https://www.liftmaster.com/catalogresourcesv3/en-us/shared/files/generaldocuments/375utaccessorycomp...
The 888LM MyQ Control Panel is compatible with Model 1255R Security+ 390MHZ LiftMaster Garage Door Opener.
"Allows most LiftMaster® Garage Door Openers manufactured since 1998 to be controlled by a smartphone, tablet or computer–when paired with the Internet Gateway 828LM"
However, the 888LM Control Panel Blinks Yellow and Red lights and then does three beeps and then repeats lights and beeps.
Upon contacting LiftMaster Technical Support I was told the 888LM is not compatible with your unit due to the early technology.
This is because mine was manufactured on Date 1/98 with Logic Board Part No. 41A5021-1C. The Garage Door Opener Logic Board can not produce enough power to charge the 888LM Control Panel's capacitors. They said I needed to buy a new Logic Board for
my 1255R garage door opener to be compatible with the 888LM Control Panel.
So there are many versions of this Logic Board.
Does anyone know which of the following Logic Boards are compatible with the 888LM MyQ Control Panel.
Logic Board Part No. Compatible with 888LM
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41A5021-B NO (1997)
41A5021-C NO (1998)
41A5021-D NO (1999)
41A5021-E ?? (2000)
41A5021-F ?? (2001)
41A5021-G ??
41A5021-H ??
41A5021-I YES
Does anyone know if versions E, F, G, or H are compatible with 888LM?
Looking to find the earliest version that is compatible with 888LM because will be the cheapest.
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Hi, did you find out? I have a Raynor 1265 with Red learn and same error.
And, is it a bif deal to replace the logic board on the opener? Would I be able to do it without disconnecting anything mechanical like bolts belts etc?
Thank you so much. -
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Mark and Jay - I'm looking into an answer for you. More soon. Chuck
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Thank you Chuck. Also, if the issue is the current logic board is unable to fully charge the 888LM, is there any workaround such as charging the 888LM initially using another way, and then connecting it to the wires?
It's somewhat frustrating that a compatible model isn't actually compatible.-
Jay Ho - I'm looking into this. Thanks for your patience. Chuck
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Forgot the "1" in part No, Believe Table should read for Logic Board Part No:
Logic Board Part No. Compatible with 888LM
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41A5021-1B NO (1997)
41A5021-1C NO (1998)
41A5021-1D NO (1999)
41A5021-1E ?? (2000)
41A5021-1F ?? (2001)
41A5021-1G ??
41A5021-1H ??
41A5021-1I YES- view 4 more comments
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MFG is 09/98. Red learn button. Current logic board is the -C version.
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Hi Jay Ho, I've looked into this and there is not a workaround other than to replace the logic board for this to work. Let us know if we can answer any other questions. Chuck
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