Garage Door SensorRepair & Alignment
Garage door safety sensors protect your family and property by preventing the door from closing when an obstruction is detected. These photo-eye sensors are a federally mandated safety feature and must remain properly aligned and fully functional.
Why Sensor Maintenance Matters
When sensors malfunction, the door may refuse to close, reverse unexpectedly, or operate inconsistently. Routine maintenance includes keeping lenses clean, ensuring both sensors remain aligned, confirming steady indicator lights, and protecting wiring from damage.
A properly functioning sensor system ensures safe, compliant operation.
⚠️ Federal Safety Requirement
Since 1993, federal law (UL 325) requires all residential garage doors to have a reversing mechanism — photo-eye sensors are the standard solution. Operating a door without functioning sensors is both illegal and dangerous.
Common Causes of Sensor Malfunction
While minor misalignment may be visible, electrical faults often require professional diagnosis. Persistent sensor issues should not be ignored — they may signal deeper system problems.
Misalignment from accidental bumps
Dust, debris, or cobweb obstruction
Damaged or loose wiring
Faulty logic board connection
Garage Door Sensor Troubleshooting Steps
Homeowners may perform limited checks before scheduling service:
- Clean both sensor lenses with a soft cloth Ensure both sensors face each other directly Confirm steady LED indicator lights Check for visible wiring damage
If the door continues to reverse or malfunction after these steps, professional service is recommended.
When to Schedule Professional Sensor Service
Improper sensor repair can create safety risks and system instability. Contact us for a professional evaluation if any of the following occur:
Sensors remain misaligned after adjustment
Wiring appears damaged
The opener logic board may be failing
The system is non-compliant with current safety standards
Sensors are cracked or physically damaged
Schedule Sensor Service
If your garage door safety sensors are malfunctioning, schedule professional evaluation before a full failure occurs. Call (801) 967-5359 or request residential service online.