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guideSeptember 12, 2026

If the Door Reverses Before It Hits the Floor, Check the Photo Eyes

A Gwinnett garage door that will not close is often a sensor issue, not a broken spring. Here is what to look for before you schedule a repair.

The morning stall

The door goes down a few feet, then heads back up. Nobody is standing in the opening. The remote still works. That pattern is usually the photo eyes, not the torsion spring.

Those little sensors sit a few inches off the floor on each track. If they are dirty, knocked out of line, or blinded by late-summer sun, the opener thinks something is in the way.

A two-minute look

  • Confirm both lenses face each other, not the wall
  • Wipe bugs and pollen off the glass
  • Look for a solid light on each sensor, not a blink
  • Make sure a broom, recycling bin, or kid bike is not breaking the beam

If the lights stay out after you clean and align them, the wiring or the opener logic board may be next. That is a repair visit, not a DIY wiring project.

When it is not the sensors

A door that slams, hangs on one side, or will not move at all is more likely cables, rollers, or a spring. Leave springs alone. They store enough energy to hurt you.

Find garage door repair in Gwinnett or start in Suwanee if you want a tech who can test the sensors and the travel limits in one stop.

What to mention when you call

Tell them whether the door reverses, will not start, or makes a new grinding sound. That one sentence saves a second trip.

The garage door directory is the inner page to use when you are ready to pick a company.

Verified by the Gwinnett Services Local Team.

Last updated September 2026. Reviewed by Local Operations Desk.

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