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Took me 6 weekends to figure out why my garage door kept reversing
I spent almost 2 months chasing a ghost. My garage door would go down about halfway then shoot back up. Replaced the springs, checked the sensors, even bought a new logic board. Turned out the track was just a tiny bit out of alignment near the top where I never looked. A quick tap with a hammer and some grease fixed it in 5 minutes after all that work. Anyone else spend way too long on something this simple?
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michaelgrant2mo ago
Drove myself nuts with virtually the same issue on a Chamberlain unit a few years back. Had the whole thing torn apart twice, even had a repair guy out once who charged me a hundred bucks to tell me it was "probably the motor." Ended up finding a small pebble wedged in the track that only showed up when the door was about three quarters of the way down. Quick scrape with a screwdriver and it worked perfect. Always check the track top to bottom before you start replacing parts, because the simple stuff hides where you least expect it.
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the_paul2mo ago
The sensors aren't supposed to flash when blocked, but a tiny misalignment near the top is usually the real culprit with those old LiftMaster openers.
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