Inside EdgeSensor repair
- Part
- Safety sensors
- Usual time on site
- Usually under an hour
- Permit
- We tell you before we start
- Call or text
- (954) 947-4016
Garage door sensor repair for doors that won't close
Garage door sensor repair deals with the pair of photo-eyes low on the tracks that keep the door from coming down on someone. Usually they're dirty, damp or knocked off line, not broken. Pembroke Pines adds one more suspect: late-afternoon sun shining straight into a sensor when the garage opens to the west.
What you're seeing
- Halfway down it stops, then climbs back up without ever touching the slab.
- Only a finger held on the wall button gets it all the way down.
- One of the little sensor lights is blinking or dark.
- It works in the morning and fails around 4 or 5 in the afternoon, when the sun hits the garage.
- It started after a storm, or after someone hosed down the garage floor.
- It bounces back up the moment it meets the slab: look at the opener's close settings before blaming the sensors.
Safety sensors and the beam
One sensor sends an invisible beam across the opening and its partner receives it, both fixed near the base of the tracks. Break that beam during a close and the opener reverses the door. In the loop, both sensors glow and the beam appears as a line across the doorway.
Sun, damp air and small visitors
Three things trip sensors in South Florida garages. Low sun: when the garage faces west, late-afternoon light can pour straight into the receiving eye and blind it. Moisture: the rainy season brings dew points in the 70s almost daily (National Weather Service, Miami), and damp air condenses on the lenses and inside the housings. And visitors: spider webs, ants, tree frogs and lizards like the warm, dark spot behind the lens.
For sun trouble, the receiving sensor can often trade places with the sending one, ending up on the shaded side, or get a small shade.
When it's a part, not dirt
Both indicator lights get checked, along with alignment and the thin wire running up the wall to the opener. A staple driven through that wire, a splice turned green with corrosion, or a wire chewed near the slab can each pass for a dead sensor. Sensors come and go in pairs, and the brackets are set firmly so a bumped bicycle can't knock them off line again. Still unsure it's the sensors? Our troubleshooting guide groups problems by symptom. Garage stuck open after dark? Call for emergency repair.
The reverse test before we leave
Every visit ends with two checks you can watch. First, a 2x4 goes flat on the slab under the door, and the door has to reverse the moment it touches the wood. Second, something crosses the beam as the door descends, and the door has to rise again. Fail either one and the job isn't finished.
What changes the job
- Cleaning and aim, or a new pair
- Many visits end with cleaning, aiming and tightening. A sensor that tests dead gets replaced, and its partner with it.
- The wire run
- A damaged wire behind shelves or under paint takes longer to trace than a sensor takes to swap.
- Sun exposure
- A garage that takes direct afternoon sun may need the sensors swapped side to side, or a shade, so the fix holds in July as well as in November.
- The opener's age
- Some older openers use sensors that are no longer made. Then the choice is a compatible sensor kit or a newer opener, and we explain both.
Sensors and their wiring belong to the opener's safety system, not to the door's structure. Repairs that don't touch the frame or the opening usually don't change the permit picture; when one does, we tell you before we start. For the bigger jobs, read our Pembroke Pines permit guide.
Questions about this
Garage door goes back up before closing. What's the cause?
Usually the safety sensors can no longer see one another. Clean the lenses, make sure both lights glow steadily and clear anything in the beam. If the reversal happens right at the slab instead, the opener's close limit needs adjusting.
Can sunlight affect garage door sensors?
Yes. When a strong, low sun shines straight into the receiving eye, it can blind it, so closing fails late in the afternoon. Moving the two sensors to opposite sides, or fitting a small shade, usually fixes it.
What does a blinking garage door sensor light mean?
Most often, misalignment or something blocking the beam. Clean the lenses and turn the sensor until its light holds steady; if it keeps blinking, the wire or the sensor needs testing.
Can I bypass my garage door sensors?
Don't. Those sensors are what stop the door from landing on a child, a dog or a car hood. Most openers will close the door while you keep pressure on the wall button and watch it; that's fine to shut the house tonight. Then get the sensors fixed.
Call, or text us a photo first
A person answers 24/7. If it isn't urgent, a photo of the safety sensors helps us bring the right part.