Crush Prevention Systems: Protecting Your Family
2023-12-28 Sarah Williams
The Importance of Garage Door Safety
Your garage door is the largest moving object in your home, weighing between 150 and 400 pounds depending on size and material. While modern garage doors are engineered for safety, understanding and maintaining the safety systems is crucial for protecting your family, especially children and pets. At Garage Door North Wilkesboro, we've made safety education a priority for every customer we serve across North Wilkesboro and the greater Wilkes County area.
Understanding Crush Prevention Technology
Since 1993, federal law has required all garage door openers sold in the United States to include auto-reverse mechanisms. Today's systems are more sophisticated than ever, using multiple technologies to prevent crushing injuries:
Force Sensitivity (Mechanical Resistance)
Every garage door opener includes force sensitivity controls that detect resistance during door travel. When the door encounters an obstruction—whether a child's bicycle, a family pet, or a person—the system immediately stops and reverses the door.
These force settings are adjustable to accommodate the weight of your specific door while remaining sensitive enough to detect obstructions. If your door pushes too hard before reversing, the force setting may be too high and should be adjusted by a professional.
Photo-Eye Safety Sensors
Installed near the floor on both sides of your garage door opening, photo-eye sensors create an invisible infrared beam across the doorway. When anything breaks this beam while the door is closing, the door immediately stops and reverses.
These sensors are your most important line of defense against crush injuries. They're particularly effective at protecting children and pets who may run under a closing door. However, they only work when properly aligned and clean.
Timer-to-Close Safety Feature
Many modern openers include a timer-to-close feature that automatically closes your door after a set period. This feature includes additional safety protocols: the door will flash lights and sound warnings before closing, and the photo-eye sensors remain active throughout the closing sequence.
Testing Your Safety Systems
We recommend testing your garage door safety features monthly. Here's how:
Force Reversal Test
- Open your garage door fully.
- Place a 2x4 board flat on the floor in the door's path.
- Press the close button on your remote or wall control.
- When the door contacts the board, it should immediately reverse.
- If the door doesn't reverse within 2 seconds of contact, call for service immediately.
Photo-Eye Sensor Test
- Start with the door in the open position.
- Press the close button.
- As the door begins to close, wave a broomstick or your foot through the sensor beam (about 6 inches off the ground).
- The door should stop and reverse immediately.
- Check that both sensors have steady (not blinking) indicator lights.
Common Safety System Problems
When safety features malfunction, your garage door becomes a serious hazard. Watch for these warning signs:
Misaligned Sensors
The most common issue. Signs include:
- Door won't close at all, immediately reversing
- Blinking indicator lights on sensors
- Door only closes when holding the wall button
Often, sensors just need cleaning and realignment—a simple fix our technicians can complete quickly.
Dirty Sensor Lenses
Garage environments collect dust, cobwebs, and debris that can block the infrared beam. Clean sensor lenses monthly with a soft, dry cloth.
Damaged Wiring
Wires running from sensors to the opener can be damaged by impact, pests, or age. If you notice exposed or frayed wires, call for professional repair.
Sun Interference
Direct sunlight can sometimes interfere with photo-eye sensors. If your door only malfunctions at certain times of day, sun glare may be the culprit. Sensor hoods or repositioning can solve this issue.
Teaching Children About Garage Door Safety
Children are most at risk for garage door injuries. Teach your kids these important safety rules:
- Never play with garage door remotes or wall buttons
- Never run under a moving garage door
- Keep fingers away from door sections and hinges
- Never stand or walk under a door that's being serviced
- Tell an adult immediately if the door makes strange noises
Consider mounting your wall button at least 5 feet high, out of reach of small children, and always store remotes where children cannot access them.
Upgrading Older Systems
If your garage door opener was installed before 1993, it may lack modern safety features. Even openers from the early 2000s may have less sophisticated safety systems than today's models. Consider upgrading if:
- Your opener lacks photo-eye sensors
- Force reversal is inconsistent or weak
- Safety features require frequent adjustment
- Your opener is more than 15 years old
Professional Safety Inspections
At Garage Door North Wilkesboro, every service call includes a comprehensive safety check. Our technicians verify proper operation of all safety systems and make adjustments as needed. We believe that safety isn't an add-on—it's part of every job we do.
Serving North Wilkesboro, Wilkesboro, Boone, Lenoir, Statesville, and all surrounding communities, we're committed to keeping families safe. Contact us today to schedule a safety inspection or discuss upgrading your opener to include the latest safety technology.