A garage door that closes partway and then reverses, flashes the opener lights, or refuses to close unless the wall button is held can point to sensor misalignment. The issue can also come from wiring or obstruction, so alignment is only one possibility.
A garage door that closes partway and then reverses, flashes the opener lights, or refuses to close unless the wall button is held can point to sensor misalignment. The issue can also come from wiring or obstruction, so alignment is only one possibility.
Inconsistent closing, blinking sensor lights, and a door that reverses near the floor are common clues.
Look for dirt on the lens, obvious knocks to the brackets, or stored items blocking the beam. A visual check is reasonable. Rewiring or bypassing safety devices is not.
Dust, dampness, and the way many households use the garage as a main entrance can make minor sensor knocks more common than people expect.
Surrey homeowners ask this question because garage doors are used hard and exposed to wet weather, neighbourhood-specific conditions, and a wide range of door ages. A practical answer should connect the symptom to the likely system involved, then point the reader toward the correct next page rather than pushing a generic sales message.
Related reading includes the Surrey garage door blog hub, garage door support, and pricing guidance when the question is really about scope and next steps.
Sometimes, depending on the setup and angle.
No. Safety sensors are there for a reason.
Yes. Travel settings, force settings, wiring, and logic-board issues can mimic a sensor problem.
See the garage door opener repair page.
If that issue matches what you are seeing, review garage door opener repair so the symptom is matched to the right service path.
