Genie Garage Door Sensor Blinking Red 3 Times [Causes and Fixes] - New Garage Source

What a Yellow Garage Door Sensor Means & How to Fix the Problem

Why are my Garage Door Sensors not Lighting Up? - New Garage Source

Garage Door Sensor's Yellow Light? (Here's What It Means)

I’m pretty sure this garage door opener was new in 1978 when the house was built. Going to replace it today with a new unit. Ironically, the other door opener works but not with the wall button. I’ve narrowed that to a bad circuit board which apparently is a common issue with Liftmaster/Craftsman/Chamberlian openers circa 2011. It’s on order. I’m glad I can fix stuff. Remember you can too, just take a logical step by step approach and you will get there. Stay dirty as I like to say. #garagedooro

Garage Door Won't Close Unless You Hold The Button? (Fix It Now!)