Edina Garage Door Repair Expert
A technician in plain workwear crouched at the side of a garage door opening, adjusting a small photo eye sensor mounted low on the track bracket, garage door open behind them

Sensor repair · Edina, MN

Garage Door Sensor Repair

When the door closes an inch and bounces back, or the opener lights blink and nothing moves, the safety eyes are usually the cause. We come to you in Edina, realign or replace the sensors, and explain the fix before we start.

CALL NOW: (952) 299-5920
  • Licensed and insured
  • Upfront quote before work
  • Parts-and-labor warranty

Reversing doors

Why the door reverses or will not close

Every opener sold in the United States has a pair of photo eyes, one on each side of the door, about 4 to 6 inches off the floor. They shoot an invisible beam across the opening. If anything breaks that beam while the door is closing, the door must stop and reverse. That is a federal safety requirement, and it is what keeps a door from coming down on a child, a pet or a bumper.

Garage door sensor repair starts when that beam does not reach the other eye. A bumped bracket, a bike handle against the wall, a loose wire stapled along the trim, a lens covered in dust or road salt, or sun glare at the wrong hour of the day can all do it. In Minnesota winters, snow and slush thrown off a car, plus frost on the lens, are common causes of a door that reverses on one cold morning and works fine at noon.

The usual sign is a door that starts down, stops partway or reverses, while the opener light blinks. Remote closing fails but holding the wall button down works, which is a tell that the sensors are the problem and not the springs. If the door will not close at all and you are not sure why, the springs, cables and tracks are worth ruling out too, and we check them on the same visit.

CALL NOW: (952) 299-5920
Close-up of two small photo eye sensors, one on each side of an open garage door, mounted low on the track brackets with a thin wire running up to the ceiling

Sensor checks

What we check on a sensor repair

Alignment of the two eyes

The sending eye and the receiving eye must point straight at each other. A bracket knocked a few degrees off is enough to break the beam, so we reseat and level both.

Indicator lights

Each eye has a small light that tells us whether it is powered and whether the beam is landing. A dark light means no power. A flickering light means a weak or interrupted signal.

Wiring and terminals

The thin low voltage wire runs from each eye to the opener head. We look for staples through the insulation, cuts, rodent chewing and loose screw terminals at both ends.

Lenses and sunlight

We clean the lenses and check for direct sun on the receiving eye. Sometimes a small shield or a swap to the shaded side solves a problem that happens only at certain hours.

Replacement eyes

When an eye is cracked, water damaged or dead, we replace the pair together, because mixed old and new eyes can drift out of tune. The replacement matches your opener.

Reversal test

After the repair we block the beam and confirm the door reverses, then test that it also reverses when it meets resistance on the way down.

CALL NOW: (952) 299-5920

The sensor repair

How a garage door sensor repair goes

  1. 01

    Step 01

    You call and describe what the door does

    Tell us whether it starts down and reverses, will not move at all, or only fails some days. That narrows the cause before we arrive.

  2. 02

    Step 02

    We come out and test the eyes

    A uniformed technician checks the lights, alignment, wiring and lenses, and runs the door to see how it behaves.

  3. 03

    Step 03

    We explain the cause and the price

    We tell you whether it is a realignment, a wire fix or a new pair of eyes, and you get an upfront quote before any work begins.

  4. 04

    Step 04

    We fix it and test the reversal

    We make the repair, run the door through several cycles and confirm the safety reversal works every time.

CALL NOW: (952) 299-5920

Sensor repair · Edina, MN

A door that reverses for no reason is protecting you from something it cannot see. Tell us what it is doing and we will find what is blocking the beam.

CALL NOW: (952) 299-5920

Sensor work

Sensor repairs and finished results

  • A technician holding a small level against a photo eye bracket at the base of a garage door track, concentrating on the alignment
    Leveling the eye to the opposite side
  • Close-up of the back of a photo eye sensor with two thin wires attached to small screw terminals, a hand holding a small screwdriver
    Checking the wire terminals
  • A garage door closing smoothly in a clean attached garage, both photo eyes visible low on each side with their small indicator lights lit
    Both eyes lit and aligned

Sensor questions

Garage door sensor questions

How do I know the sensors are the problem and not the springs?
If the door begins to close and then reverses, or the opener lights blink and the door will not move, the eyes are the likely cause. A door that is heavy, slams down or will not lift by hand points to a spring or cable instead, and that calls for spring repair.
Can I use the door while the sensors are broken?
You can close it by holding the wall button down until the door is fully shut, since that bypasses the eyes on most openers. Watch the door the whole way and keep children and pets clear. Do not disable the eyes permanently, because they are a safety device.
What can I try before calling?
Wipe both lenses with a soft cloth, move anything leaning near either eye, and check that the indicator lights are on. If one eye is dark, check that the wire is not pinched or pulled loose from the bracket.
How much does garage door sensor repair cost?
It depends on whether the eyes only need realigning, the wire needs repair or the pair needs replacing. A realignment is the simplest job and a new pair of sensors costs more. The technician gives you the quote before any work begins.
How long does the repair take?
Most sensor repairs are finished in one visit. A realignment is quick. Replacing both eyes and running new wire takes longer.
Do you replace sensors on any opener?
We replace sensors on the openers we service, and the replacement matches your opener's wiring. If the opener itself is the reason the sensors keep failing, we will say so, and an opener repair may be the better fix.
Are sensor repairs covered by a warranty?
Yes, our repairs are backed by a parts-and-labor warranty.

Sensor repair · Edina, MN

Door reversing for no reason?

Tell us what the door does and when. We will come out, test the eyes, wiring and reversal, and explain the fix before any work starts.

CALL NOW: (952) 299-5920
  • Licensed and insured
  • Upfront quote before work
  • Parts-and-labor warranty