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ArmourHeights Door SpecialistsOpen 24/7 (289) 536-9773
Technician kneeling beside a white paneled garage door, holding a small black box with a green light against the vertical track. — Photo-Eye Sensor Alignment or Replacement, Wilson Heights

Openers · Wilson Heights

Photo-Eye Sensor Alignment or Replacement

After a cold night the door stays open until the garage warms up. There is frost on the sensor lenses and a ridge of salty slush piled against the brackets where the snow blower was parked.

In plain words

Two small sensors face each other across the doorway: one sends an infrared beam, the other receives it. While the beam lands on the receiver, the opener will close the door; the moment anything interrupts it, the door stops and returns to open. Every sensor call comes down to why the receiver has lost the beam: an object, a bent bracket, a dirty or frosted lens, sun in the receiving eye, a broken wire or a tired sensor. The technician works through those in order, fixes the one that applies, and shows you the steady indicator lights that mean the pair is talking again.

Sound familiar?Wilson Heights

The call
Someone backed the car in a little too far, a bin or a bicycle brushed the track, and since then the door starts to close and comes back up. One sensor now sits at a slightly different angle from the other.

NextHow the visit goes

Photo-Eye Sensor Alignment or Replacement · Wilson Heights

How the visit goes

Technician in safety glasses turning a small tool at a bracket where the curved metal track meets a door panel. — Wilson Heights
  1. Scene 1

    Clearing and walking the beam

    Before anything is adjusted, the technician clears the strip of floor between the two sensors and looks along the beam line at sensor height. Things that break a beam are rarely dramatic: the corner of a recycling bin, a hose left coiled by the wall, a bag of salt, leaves blown in under the door, a cobweb bridging a lens, a new weatherstrip or track shoe that sits a little proud. Snow and ice piled inside the door in winter count too. With the path clean, the door is tried again, because a fair share of sensor calls end right here, with a lesson about where things can and cannot sit.

  2. Scene 2

    Proving it with the two tests

    No sensor job is finished on a steady light alone. The door is closed from the wall control and from a remote, and while it is on its way down an object is passed through the beam; the door must stop and return to fully open. Then a 2x4 is laid flat on the floor under the centre of the door and the door is closed onto it; it must reverse on contact. Both are repeated, the opener's diagnostic light is confirmed clear, and any app or hub reporting a sensor code is refreshed. The customer watches the tests so the normal behaviour is seen, not described.

  3. Scene 3

    If it ever reverses again

    Should the door start bouncing back up in the future, you know the order to check. Look along the floor for anything in the beam. Look at the two sensor lights for a dark or flickering one. Look at whether the door backs up as soon as it starts or only after touching something, since the second points to the door's settings rather than the beam. Note whether the opener light is flashing and how many times. With those four facts the cause is usually obvious, and if a visit is needed, the technician arrives already knowing where to begin.

In the van

  • Wall or floor angle brackets
  • Wire connectors
  • Two-conductor low-voltage wire
  • Insulated wire staples
  • Receiving-eye sun shade

What shapes the quoteArmour Heights Door Specialists

Undoing an earlier shortcut
Sensors taped together beside the motor, mismatched pairs from different generations or a bypassed circuit are put right first, which means new wire down each side and fresh brackets at the doorway.
Bracket condition
A bracket that can be straightened costs little time. One that is cracked, rusted through or missing is replaced, and a change from track clips to wall or floor brackets adds anchors and mounting work.
Wall or floor mounting with anchors
Mounting into concrete or masonry rather than onto the track means drilling, anchors and sealing against water, which takes more time than clipping to the rail.

FeesSame any hour

Have it ready

Before you call · 0 / 3

(289) 536-9773

Asked and 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.

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 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.

Wilson Heightsinformation

TorontoOntario

Photo-Eye Sensor Alignment or Replacement · Toronto, Armour Heights, Lawrence Heights, Lawrence Manor, Winston Park

Town
Wilson Heights, Toronto
In business
14 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.

  • 58 in 100 homes · older homes
  • About 58% of homes in Toronto were built in 1980 or earlier, according to the 2021 Census.Wood door frames in an older house settle and swell over the decades, which can leave a door rubbing on one side. Rather than forcing the opener, the technician trues the tracks, adjusts the jamb seals and sets the door so it travels freely again.
  • Single-detached houses make up about 23% of homes in Toronto (2021 Census).Where most homes are townhouses, condos or apartments, garage doors are often shared: a single overhead door or gate serving an underground or common garage. Those doors run on commercial operators built for constant use, and their upkeep is usually arranged through the building's management.

Source: Statistics Canada, Census Profile

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On-site assessment

Request a visit.

After a cold night the door stays open until the garage warms up.

(289) 536-9773, open 24/7.