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- Sensor Repair
Sensor Repair Services
Is your garage door not closing in Boston? Safety sensors (photo-eyes) are required on all automatic garage doors and prevent the door from closing on people, pets, or objects. When sensors malfunction, your door won’t close properly. AB Garage Door provides expert sensor diagnosis, alignment, and replacement throughout Greater Boston and Massachusetts.
Know The Signs
When You Need Sensor Repair
Watch for these warning signs that indicate it’s time to call for professional service.
Door Won't Close
The most common sensor issue—the door reverses or won’t close at all.
Flashing Opener Lights
Blinking lights on your opener often indicate sensor problems.
Sensors Not Lit
Sensors should have steady lights when properly aligned and powered.
Only Closes with Button Held
If the door only closes when you hold the wall button, sensors are malfunctioning.
Intermittent Closing
Works sometimes but not others—often vibration or alignment issues.
Visible Damage
Cracked sensor housings, exposed wires, or impact damage.
What We Offer
Sensor Repair Options
Sensor Alignment
Precision alignment to restore proper function.
- No parts needed
- Quick fix
- Includes testing
Sensor Replacement
New sensors when repair isn’t possible.
- OEM or universal
- All brands
- Warranty included
Wiring Repair
Fix damaged wires or connections.
- Trace shorts
- Replace wiring
- Clean connections
Investment Level
What to Expect
Budget-Friendly
Sensor repair costs depend on whether alignment, wiring repair, or sensor replacement is needed. Simple alignment is quick and affordable; full sensor replacement with wiring is higher.
How It Works
Our Sensor Repair Process
1
Diagnose
Identify sensor issue (alignment, wiring, etc.)
2
Test
Check sensor signals and connections
3
Repair
Align, rewire, or replace sensors
4
Verify
Test safety reversal function
Why Choose Us
Sensor Repair Benefits
- Precise alignment
- All brands serviced
- Sensor replacement
- Wiring repair
- Safety compliance
- Quick diagnosis
- Sensor replacement
- Testing included
Got Questions?
Sensor Repair FAQs
Why won't my door close?
Usually sensor misalignment or obstruction. Check for debris blocking the sensors and look for steady lights on both sensors. Blinking lights indicate a problem.
Can I bypass the safety sensors?
We strongly advise against it. Sensors are a critical safety feature required by law since 1993. They prevent the door from closing on people, pets, or objects.
Why do my sensors keep going out of alignment?
Common causes include vibration from the door, loose mounting brackets, impact from objects in the garage, or foundation settling.
Do you work on all sensor brands?
Yes! We service sensors on all major opener brands including LiftMaster, Chamberlain, Genie, Craftsman, and more.
How do I know if my sensors are working?
Each sensor has an LED light. When properly aligned, both lights should be steady (not blinking). You can also test by blocking the beam—the door should reverse.
Can sunlight affect my sensors?
Yes, direct sunlight can interfere with photo-eye sensors. We can install sun shields or reposition sensors if this is an issue.
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