Chamberlain 41A6318 Garage Door Opener Wall Control

I just purchased the BlaQ and connected it to my Chamberlain belt drive with the purple learn button… I have the Chamberlain 41A6318 Garage Door Opener Wall Control as seen here: 41A6318 Motion Detecting Door Control | Parts | Chamberlain

I have been experiencing random openings and seeing logs lock/unlock, obstruction/clear, light on/off…

latest firmware, set to +1; auto does not work at all; the others also do not work - I do see less logs with the +smart panel but zero functions work.

Is it the wall control that is conflicting? I have tried all wiring configurations from the installation manual.

Thanks.

This is one of the really old ones with motion sensing, similar to the 398LM that also has compatibility issues. I have not seen many of these out in the wild … it sounds like they were only on the market for a short time and 10+ years ago.

I can’t say for sure, but i strongly suspect it is these much older wall panels that are causing the problem. The 398LM is confirmed known to cause interference with communication, sometimes resulting in unintended door openings.

You can test it by simply removing the wall button from the circuit (disconnecting it). If the GDO blaQ works reliably with the wall button disconnected, then we know it’s the wall button causing interference.

Recommended replacements are the 889LM if you want motion sensing capability and all the bells/whistles or 78LM or generic equivalent if you want a cheaper, basic analog wall button.