I don't know what happened to my reply. Go here http://www.chamberlain-diy.com/diy04/product_support/technical_support/0,1341,uid-eGWJbmJkam9qZQ==_2496,00.htmlhttp://www.chamberlain-diy.com/diy04/product_support/technical_support/0,1341,uid-eGWJbmJkam9qZQ==_2496,00.html And the next to the last item list the diagnostic codes for the light. The website see be flaky this morning. You might have to retry it several times. And here you can download the manual. http://www.liftmaster.com/consumerweb/service/manuals/instructionmanualslanding.htm
Topic History:
Topic Follow-ups: