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SaugeenDoor SpecialistsOpen 24/7 (226) 909-6720
Illustrative garage doors scene — Photo-Eye Sensor Alignment or Replacement, Keady

Openers · Keady

Photo-Eye Sensor Alignment or Replacement

You press the remote, the door drops a few centimetres, then climbs straight back to the top while the opener light blinks. Nothing is under the door.

In plain words

Photo-eye sensor service brings back the invisible beam that runs across the bottom of your doorway and lets the opener close with confidence. A technician clears the path, checks each sensor's indicator, tests the low-voltage wiring back to the head unit, and reads the opener's own diagnostic lights to tell an obstruction from a wiring fault. Brackets are straightened and refastened, lenses cleaned, and the pair aimed at each other at the same height no higher than 15 cm off the floor. If a sensor has failed, a matched pair for that opener family goes in. The visit ends with a beam test and a contact reversal test.

Sound familiar?Keady

The call
There are no sensors at the floor at all, or a previous owner has wired the pair together up beside the motor so the beam never crosses the doorway. A home inspector has just pointed it out.

NextHow the visit goes

Photo-Eye Sensor Alignment or Replacement · Keady

How the visit goes

Illustrative garage doors scene — Keady
  1. Scene 1

    Ruling out sun, frost and reflections

    A sensor that misbehaves on a timetable is usually being blinded rather than broken. The technician notes which way the door faces, where the low sun reaches the floor in the morning and late afternoon, and whether a receiving lens looks into that light or into a reflection off a parked car, a white wall or fresh snow. Lenses are checked for frost, condensation and a film of salt, common in an unheated garage. A hand cupped over the receiving eye while the light is watched is a simple test: if the indicator settles when the eye is shaded, the fix is a side swap or a small hood rather than new parts.

  2. Scene 2

    Bringing the pair back to the doorway

    Sometimes the sensors exist but have been defeated: taped face to face next to the head unit so the circuit is always satisfied and the door closes on anything. The technician separates the pair, checks that both still work, and mounts them where they belong on each side of the opening, low to the floor and facing each other. New wire is run down each side, brackets are fitted, and the alignment is set. The opener is then made to prove itself with the beam test, and the household is shown why the pair matters and how to keep it working, so the shortcut is never tempting again.

  3. Scene 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

  • Wall or floor angle brackets
  • Concrete anchors
  • Insulated wire staples
  • 2x4 test block
  • Matched photo-eye sensor pair

What shapes the quoteSaugeen Door Specialists

Alignment or replacement
Cleaning, re-aiming and refastening the existing pair is the smaller job. Fitting a new matched sending and receiving pair is the larger one, and the diagnosis at the door decides which applies before the quote is settled.
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.
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.

FeesSame any hour

Have it ready

Before you call · 0 / 3

(226) 909-6720

Your questions, answered

How do I test the sensors each month?

Start the door closing and, while it is moving, swing a broom handle through the beam low across the opening; the door should halt and travel back up. Next, put a 2x4 flat beneath the door's centre and run the door onto it; it should back off as soon as it touches. If either test fails, close the door first if you can, use it by hand with the manual release, and book a visit; do not release it if it feels heavy.

Can cold weather affect the sensors?

It can, in a few ways. Frost or condensation on a lens in an unheated garage dims the beam until it clears. The low winter sun reaches further across the floor and into a receiving eye. Old wire insulation cracks in the cold and shorts. Salt slush builds against brackets and corrodes them and the terminals over the years. Each of those has a straightforward remedy: cleaning, a shade or side swap, a fresh wire run, or brackets set above the slush line.

How long does a sensor visit take?

Alignment, cleaning and a bracket adjustment are done inside an hour on most doors, including the two tests at the end. Replacing the pair adds a little for wiring and setup. Re-running the wire all the way from the motor to both sensors is the part that stretches a visit, especially where the wire is behind a finished ceiling or the garage is full. Having the floor by the door clear before arrival helps.

Keadyinformation

GreyOntario

Town
Keady, Grey
In business
21 years
Hours
Open 24/7
Nights, weekends and holidays, same fees
Visits
On-site assessment preferred. Request a visit or call.

2021 census: what it means at the door

Every square is one home in a hundred.

  • 53 in 100 homes · older homes
  • About 53% of homes in Georgian Bluffs were built in 1980 or earlier, according to the 2021 Census.Older garages are frequently used as workshops or storage as much as parking, which means the door opens many times a day and collects dust on the sensors. Sealed rollers, protected photo-eyes and a tune-up schedule suit that pattern well.
  • Single-detached houses make up about 93% of homes in Georgian Bluffs (2021 Census).Detached homes usually have their own driveway and apron, and years of freeze and thaw can leave the concrete uneven where the door meets it. A thicker bottom seal or a threshold strip closes the gap, keeping snow, leaves and cold air out of the garage.

Source: Statistics Canada, Census Profile

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On-site assessment

Request a visit.

You press the remote, the door drops a few centimetres, then climbs straight back to the top while the opener light blinks.

(226) 909-6720, open 24/7.