Sound familiar?Otonabee-South Monaghan
- The call
- Since shelving went up along the garage wall, the door will not close and both sensor lights are dead. A screw or staple may have gone through the thin wire that runs from the opener to the sensors.
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.
Photo-Eye Sensor Alignment or Replacement · Otonabee-South Monaghan
How the visit goes
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.
Scene 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.
Scene 3
Wiring that stays put
The wire between the head unit and the sensors has been secured along the ceiling and walls, clipped clear of the track and, where it was exposed, run inside a protective channel. Two things keep it that way. First, when anything is fastened to those walls or that ceiling, from shelving to a bike hook to drywall, look for the thin wire before driving a screw or a staple. Second, if mice have been in the garage, a chewed wire is a common sign, so a dark sensor light after a sighting is worth a look at the run. Either way, the sensor lights will tell you the moment the circuit is open.
In the van
- Concrete anchors
- Multimeter
- Wire connectors
- Matched photo-eye sensor pair
- Receiving-eye sun shade
What shapes the quoteOtonabee Garage Door Services
- 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.
- 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.
- Length and route of the wire run
- A damaged section near a sensor is a short repair. A fresh run from the motor to both sides of the doorway takes longer, more so where the wire is buried in a finished ceiling.
FeesSame any hour
Frequently asked questions
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.
The door closes if I hold the wall button. Is that a fix?
It is a built-in stopgap, not a repair. When the sensor circuit is not satisfied, many openers allow a close from the wall control only while the button is held, on the idea that a person standing there can see the doorway. Newer units drop that behaviour altogether and simply hold the door open. Either way the door is telling you the beam has failed, and a sensor visit puts remote closing back.
Do sensors wear out with age?
They do, slowly. The infrared emitter and the receiver dim over many years, lenses craze or cloud from sun and salt, housings crack, and water finds its way in at floor level. A pair that needs re-aligning more and more often, or whose light drifts between steady and flickering with nothing touched, is usually ageing. Because pairs are matched to the opener, an older opener is worth identifying early so the right replacement is on hand.
Openers & Access
- Chain-Drive Opener RepairThe chain hangs in a loop under the rail and slaps against it on every cycle.
- Belt-Drive Opener RepairThe belt looks fine from a distance, but up close the rubber has cracked across the back in dozens of places and, in one spot…
- Garage Door Opener ReplacementThe opener in the ceiling is older than the car parked under it.
- Garage Door Remote and Keypad ProgrammingThe outdoor keypad worked all summer.
- Smart Garage Controller SetupYour daughter gets home from school an hour before anyone else.
Otonabee-South Monaghaninformation
PeterboroughOntario
Photo-Eye Sensor Alignment or Replacement · Peterborough, Cavan Monaghan, Ashburnham, Byersville, Claraday, Coldsprings, Collison Heights, Downers Corners, Greenhill, Jackson Heights, Kawartha Heights, Westmount
- Town
- Otonabee-South Monaghan, Peterborough
- In business
- 23 years
- Hours
- Open 24/7
- Nights, weekends and holidays, same fees
- Phone
- (249) 494-2181
- 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.
- 55 in 100 homes · older homes
- 89 in 100 homes · mostly houses
- About 55% of homes in Otonabee-South Monaghan 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 89% of homes in Otonabee-South Monaghan (2021 Census).A detached house with its own garage is a natural fit for upgrades that need space: a jackshaft opener to free the ceiling, a high-lift door for a car hoist, or a wider door when a bigger vehicle arrives. The technician measures the opening and headroom and says what fits.
Nearby
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.
(249) 494-2181, open 24/7.