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Two detached black sensors with recessed lenses and coiled wires lie in a tray beside a mounting bracket. — Photo-Eye Sensor Alignment or Replacement, Richmond Hill

Book soon Openers · Richmond Hill

Photo-Eye Sensor Alignment or Replacement in Richmond Hill

The small light on one of the sensors near the floor has gone dark, or it flickers when someone walks past the track. The other one glows steadily.

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Before the door is looked at

Call (289) 210-5126, open 24/7.

  1. Never bypass, tape over or relocate the sensors to make a door close; a door that reverses is reporting something worth fixing.

In plain words

Some sensor problems keep a schedule. A receiving eye that faces the low sun on winter mornings is flooded with light and loses the beam until the sun moves on, and a lens that frosts overnight in an unheated garage clears itself by noon. The service sorts these out for good: the sensors are swapped side to side so the receiver faces away from the light, or a small shade is fitted, and lenses and brackets are cleaned and reset above the line where slush collects. The door then closes at any hour of the day and in any month.

Sound familiar?

The door will only go down while a finger stays on the wall button; let go and it stops or reverses. From the remote it opens fine but never closes, so someone has to stand in the garage every time.

How the visit goes

Photo-Eye Sensor Alignment or Replacement · Richmond Hill

How the visit goes

Technician kneeling at a garage opening, pushing a black rubber seal into the metal jamb, with a red utility knife nearby. — Richmond Hill
  1. 1

    Brackets and height on both sides

    The two sensors have to sit at the same height, level, and facing each other squarely, no higher than about 15 cm (6 in) above the floor so the beam catches a small child or a pet. The technician measures both sides, because a bracket that has slipped a couple of centimetres down a track leg is enough to lose the beam. Each bracket is checked for bends from a bumper or a bin, for loose carriage bolts or wing nuts, and for rust where salt slush has sat against it for winters on end. A bracket screwed to a wall or the floor is checked for anchors that have worked loose.

  2. 2

    Resetting the alignment

    Alignment is done with the door open and the lights in view. The technician sets both sensors to the same measured height, loosens the wing nut on the receiving side, and turns the sensor a fraction at a time until its indicator changes from dark or flickering to steady. The nut is tightened while the light is watched, because a sensor can drift as the fastener bites, and the sending side is treated the same way. Brackets are checked for play and the wire is re-clipped so it cannot tug the sensor out of line. A steady light on both sides, held through a few door cycles, is the standard.

  3. 3

    A door that closes from the driveway again

    The change you notice first is the ordinary one: you press the remote from the car, the door goes all the way down, and nobody has to stand in the garage holding a button. Behind that is a beam that is once more crossing the doorway at the right height, a pair of sensors that agree with each other, and an opener that is no longer flashing a warning every time you ask it to close. The door still stops and returns to open whenever the beam is broken, which is exactly what it should do, and now it does that only when something is genuinely in the way.

In the van

  • Concrete anchors
  • Matched photo-eye sensor pair
  • Two-conductor low-voltage wire
  • Protective wire channel
  • Insulated wire staples

What affects the quote

  1. 1

    Force and travel adjustment alongside

    If the reversing turns out to involve a travel limit set long or a force setting made in summer, adjusting and re-testing those settings is included as a small extra step.

  2. 2

    Opener make and generation

    Sensor pairs are matched to the opener family, and some models take a kit with brackets and wire while others take sensors alone. The head unit label sets which pair is needed and how it is priced.

  3. 3

    Corrosion reaching the head unit

    Where salt and water have travelled up the wire to the terminals, or the sensor terminals on the board are damaged, the repair extends beyond the pair and that is set out separately.

Same fees day, night or weekend.

Have it ready

Before you call · 0 / 3

(289) 210-5126

Photo-Eye Sensor Alignment or Replacement: questions

Advice · (289) 210-5126

Will the sensors need replacing or just aligning?

Most visits end in alignment, cleaning and bracket work, because the sensors themselves are hardy. Replacement comes into it when a lens has clouded or crazed, when the housing is split or holds water, an indicator stays dark with the wiring proven good, or the pair is from a different generation than the opener and is never recognised. The technician tests before choosing, so the parts list matches what the door needs.

Could the wiring be the problem rather than the sensors?

Frequently. The sensors are fed by a thin two-conductor wire from the head unit that crosses the ceiling and drops down both sides of the door, and it is pierced by staples, cut by shelving screws, chewed by mice or pulled from its terminals more often than a sensor fails. Both sensor lights dark, or an opener code for an open or reversed circuit, points to the wire. The technician tests the run with a meter and repairs or replaces the damaged section.

How high off the floor should the sensors sit?

Low. The industry checklist expects the beam no more than roughly 15 cm (6 in) up from the floor, so that a small child, a pet or a bicycle wheel breaks it. Both sensors are set at the same measured height and level with each other, since a difference of a couple of centimetres is enough to lose the beam. Within that rule the technician can raise them a little to keep them out of the strip where slush collects.

Photo-Eye Sensor Alignment or Replacement near you

York, Ontario

Richmond Hill information

Town
Richmond Hill, York, Ontario
In business
22 years
Hours
Open 24/7 · nights, weekends and holidays, same fees
Visits
On-site assessment preferred. Request a visit or call.

What the census means at the door

15%

Newer homes. About 15% of homes in Richmond Hill were built in 1980 or earlier, according to the 2021 Census.

Newer garages tend to have generous headroom and a finished ceiling, so options such as a jackshaft opener mounted beside the door, or a high-lift conversion for a car hoist, are practical. The technician checks the space and explains what would fit.

57%

A mix of homes. Single-detached houses make up about 57% of homes in Richmond Hill (2021 Census).

Where housing is varied, security needs vary too. A detached home wants its garage door closing fully and its interior door respected; a townhouse or condo wants old fobs and remotes cleared and the shared entrance working. We address whichever applies at each door.

Source: Statistics Canada, 2021 Census of Population

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Open 24/7

Request a visit

The small light on one of the sensors near the floor has gone dark, or it flickers when someone walks past the track.

Call now · open 24/7(289) 210-5126
  • On-site assessment preferred
  • Same fees day, night or weekend
  • 22 years in business