Why does my garage door go down then back up?

This is usually caused by misaligned photo-eye sensors. Clean the sensors and ensure they're properly aligned.

How to Fix a Garage Door That Won't Close Properly

Comprehensive troubleshooting guide for garage doors that won't close. Learn common causes and solutions, plus when to call professional repair services.

Why Your Garage Door Won't Close

A garage door that won't close properly is not just inconvenient - it's a security risk. Understanding common causes helps you troubleshoot and know when professional help is needed.

Common Causes and Solutions

1. Photo-Eye Sensor Misalignment

The most common cause of a door that won't close is misaligned photo-eye sensors. These safety sensors are located on either side of the door near the floor. If they're misaligned, blocked, or dirty, the door will reverse immediately when trying to close.

Solution: Clean the sensor lenses, check alignment, and ensure nothing is blocking the sensor beam. Gently adjust sensors to point directly at each other.

2. Track Obstruction

Debris, ice, or objects in the tracks prevent smooth door operation. Even small obstructions can stop the door from closing.

Solution: Inspect tracks thoroughly, remove any debris, and ensure tracks are clean and clear. Lubricate tracks if needed.

3. Limit Switch Issues

The opener's limit switch determines how far the door should travel. If improperly set, the door may think it's already closed when it's not.

Solution: Adjust the limit switch on your opener according to manufacturer instructions. This usually involves turning adjustment screws.

4. Spring Problems

Broken or weak springs prevent the door from operating correctly. The door may reverse or refuse to move.

Solution: Have springs professionally inspected and replaced if needed. Never attempt spring repair yourself - it's extremely dangerous.

5. Remote or Wall Button Issues

Malfunctioning remotes or wall buttons can cause intermittent operation problems.

Solution: Check batteries, reprogram remotes if needed, and test wall button. Replace if malfunctioning.

When to Call a Professional

If troubleshooting doesn't resolve the issue, or if you notice spring problems, track damage, or electrical issues, call Smart Garage Doors immediately. Our technicians can diagnose and repair issues safely and efficiently.

If your door still will not close reliably, it is usually safest to book a professional garage door repair visit so the underlying problem can be fixed before it damages other parts.