Understanding Garage Door Safety Sensors

Since 1993, all garage door openers must include safety sensors. These devices protect families in Greenwich, Stamford, and across Connecticut from serious injuries. Understanding your openers safety features is essential.

How Safety Sensors Work

Photo-eye sensors create an invisible beam across the door opening, approximately 6 inches from the floor. When anything breaks this beam:

1. The opener immediately stops
2. The door reverses direction
3. An indicator light blinks

Sensor Components

Each sensor system includes:

• Sending unit - Emits infrared beam
• Receiving unit - Detects the beam
• Wiring - Connects to opener unit
• LED indicators - Show operational status

Common Sensor Problems

Homeowners in Darien, New Canaan, and Norwalk often encounter:

Alignment Issues

• Sensors get bumped out of position
• Mounting brackets loosen over time
• Vibration causes gradual shifting

Environmental Factors

• Sunlight interference
• Dirt on sensor lenses
• Moisture and condensation
• Extreme temperatures

Troubleshooting Guide

Try these steps before calling for garage door repair:

1. Clean the lenses - Use a soft, dry cloth
2. Check alignment - Both sensors should point directly at each other
3. Inspect wiring - Look for damage or loose connections
4. Remove obstructions - Clear any items near the sensors
5. Check LED indicators - Green typically means aligned

LED Light Meanings

• Solid green - Properly aligned and working
• Blinking green - Alignment issue
• No light - Power problem or sensor failure

When to Call a Professional

Contact our technicians in Westport, Fairfield, and Greenwich if:

• Sensors won't stay aligned
• LED lights indicate malfunction
• Wiring appears damaged
• Door still won't close after troubleshooting

Sensor Upgrades

Modern sensor systems offer enhanced features:

• Better sun interference rejection
• Wireless connectivity options
• Integration with smart home systems
• Improved durability

Our team provides professional sensor installation and openers upgrades throughout Fairfield County.