Garage Door Safety Sensor Repair in Mandurah

It's one of the smaller genuine repairs a garage door can need, and what it comes to depends on what the beams actually turn out to need — realigning and cleaning, rewiring, or a new pair matched to your opener's brand — plus whether it's a standard or after-hours visit. Every quote covers the full auto-reverse safety test at the end. If diagnosis shows the opener's logic board is the real fault rather than the beams, that's an opener repair instead, and we'll price it before doing anything. The price is confirmed before any work starts.

Watch the little LEDs on each unit and the opener's light. Both sensor LEDs lit steady means the beam is seen; one blinking usually means misalignment, and one dark points to power or wiring. If the lenses are clean, the path is clear and the brackets are tight but the door still reverses or the opener flashes, the sensor itself or its wiring has failed. Force limits and track binding can look like a sensor fault too, which is why we test the whole chain.

The simple checks, absolutely: clean both lenses, clear anything cutting the beam, and make sure both LEDs are lit steady. Actual replacement is trickier than it looks — sensors must match the opener brand's protocol, the wiring polarity matters, and after any sensor work the auto-reverse needs testing with a real obstruction, because an incorrectly wired pair can report 'clear' permanently. That last failure is silent and dangerous, which is why we test rather than assume.

In rough order of frequency: lenses fogged by dust and cobwebs, brackets knocked out of alignment by bins and bikes, direct sun blinding one sensor (the classic west-facing opening in the late afternoon), perished or chewed wiring, and finally the sensor units themselves failing with age. We read the opener's flash codes to pin down which one you've got.

Many years in sheltered conditions — often as long as the opener they're wired to. Humidity and salt shorten the electronics' life on an exposed opening, and sensors mounted low on open piers weather faster than sheltered ones. If your opener is over a decade old and the sensors have started playing up, replacing the pair is cheap insurance — and if the opener itself is of the same vintage, we'll give you an honest read on whether it's next.

That's the classic sun-glare signature. Low afternoon sun — especially on a west-facing opening with nothing to shade it — floods one sensor's receiver until it can't distinguish its partner's beam, so the opener refuses to close. The fix is repositioning, a glare shield over the receiving sensor, or swapping to a less glare-prone pair. It's a quick job, and no, propping a bit of cardboard over the sensor is not a permanent solution — the first gust removes it.

Not safely, and we won't set one up that way. The beams are what stop a closing door meeting a child, a pet or your car's tailgate; bridging them out turns a safety system off on the exact door it was protecting. Holding the wall button down (which closes the door in 'constant pressure' mode on most openers) is the legitimate get-the-car-out workaround while you wait for the repair — the fix itself is quick and is quoted before we start.