Skip to content
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, Winston Park

Openers · Winston Park

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

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?Winston Park

The call
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.

NextHow the visit goes

Photo-Eye Sensor Alignment or Replacement · Winston Park

How the visit goes

Technician in safety glasses turning a small tool at a bracket where the curved metal track meets a door panel. — Winston Park
  1. Scene 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. Scene 2

    Fitting a matched sensor pair

    When a sensor has failed, the replacement is chosen for the opener rather than from a shelf of lookalikes. The technician confirms the make and generation from the head unit label, because sensors from one era are not always recognised by a board from another. The new sending and receiving sensors are mounted on the existing or new brackets at matched heights, wired with the connectors supplied, and brought up until both indicators glow steadily. Universal pairs exist for some operators and are used where they are documented to suit that model; where the opener is old enough that no compatible pair is made, the conversation moves to a modern operator.

  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

Door-side findings
A balance problem, a stiff roller or a bottom seal that needs replacing sometimes shows up during testing. Those belong to their own service and are noted and quoted separately rather than hidden in the sensor work.
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.
Sun and reflection remedies
Swapping the sensors side to side is a small addition when the wiring reaches. Fitting a shade, or extending the wire so the receiver can move, is a little more and is listed on its own.

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.

Winston Parkinformation

TorontoOntario

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

Town
Winston Park, 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.Extension springs are common on older doors, and they should carry a safety cable through the middle so a broken spring is held rather than flung. Adding those cables is a small job the technician checks for and offers on any older door he services.
  • Single-detached houses make up about 23% of homes in Toronto (2021 Census).Townhouse rows generally have a narrow single door on each unit, with shared walls on both sides. Noise from a chain opener or dry rollers carries straight into the neighbour's home, so quiet belt-drive openers and nylon rollers are a popular and considerate choice here.

Source: Statistics Canada, Census Profile

Open Winston Park in Google Maps

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.