Wall unit began randomly flashing red and amber lights. Unit closes un-comanded when this happens! Nothing when already closed (thank goodness..but not if backing out and sensors not blocked yet..BAM). Sends message to cell phone every time though. Finally removed unit from wall and hung a wireless control on a string on screw til can figure what to do.Manufactured 01/18 so less than a year old right now. Can Liftmaster send a replacement?
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