Garage door won't move with the opener after the red release cord was pulled
The emergency release disconnects the door arm from the trolley. Re-engaging it is usually a matter of setting the release back to its connected position and running the opener so the trolley catches the carriage. First confirm the door is balanced; a heavy door means a spring problem, which is blocked work.
Cross-checked ~15 min easyBrands: Chamberlain / LiftMaster / Craftsman, Genie, All
Before you start
- Do not pull the release with the door open unless it is balanced and someone holds it; a door with a broken spring can fall fast.
- Keep people clear of the door path while testing.
Diagnostic steps
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