881lm flashing red and yellow but no sounds

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  • Updated 1 month ago
Came home tonight to find one of our garage doors open (not the one for the car we were in) when we were out.  The 881LM is fast flashing the red and the yellow leds. I pulled the power, waited and when power back on, the flashing started back up.  Unlike the thread on the 888LM, I don't get noise of any kind. I have two of these 881LMs, but only one is messing up.  Both controllers are connected to Liftmaster Professional Formula 1 openers. My side works (for  now) Wiring and sensors all seem to be as they should be. 


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john.mcging

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Posted 1 month ago

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john.mcging

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Went reading more on the site rather than go to bed and realized I had the 888lm (took the bad one off the wall to double check). Then I saw the warranty extension. But I have two of these so wondering if I should replace the working one just to be safe as they both were installed at the same time.
(Edited)