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Troubleshooting Guide: Reasons Why Your Garage Door Won't Close



Welcome to Rockford Door Company, where we understand the importance of a fully functional garage door for the security and convenience of your home. If you've ever found yourself frustrated with a garage door that won't close, you're not alone. In this blog post, we'll explore some common reasons behind this issue and provide practical solutions to help you troubleshoot and resolve the problem.


  1. Blocked Photo Sensors: One of the most common reasons your garage door won't close is blocked photo sensors. These sensors are located near the ground on either side of the garage door. They transmit an invisible beam, and if something obstructs this beam, the door will not close. Check for any debris, dirt, or objects that might be blocking the sensors. Cleaning them regularly can prevent this issue.

  2. Misaligned Photo Sensors: Photo sensors can also become misaligned over time, especially if they are accidentally bumped or shifted. Ensure that the sensors are properly aligned by checking their positions and adjusting them if necessary. A simple realignment can often restore the smooth operation of your garage door.

  3. Issues with the Garage Door Tracks: Inspect the tracks along which the garage door moves. Any misalignment, bends, or obstructions in the tracks can hinder the door's movement. Lubricate the tracks and rollers to ensure smooth operation. If there are any visible damage or misalignments, it's advisable to consult a professional for repairs.

  4. Malfunctioning Garage Door Opener: A malfunctioning garage door opener can be another culprit. Check for any loose or damaged wiring, and ensure that the opener is receiving power. If you suspect an issue with the opener, it's best to contact a qualified technician to diagnose and fix the problem.

  5. Broken Torsion Springs: Torsion springs play a crucial role in lifting and lowering the garage door. If one of these springs is broken, the door may not close properly. Broken springs are hazardous and should only be replaced by a trained professional. If you notice a broken spring, avoid attempting to operate the door and seek professional assistance immediately.

  6. Limit Switch Problems: The garage door opener has limit switches that determine the open and close positions of the door. If these switches are not set correctly, it can lead to issues with the door's movement. Refer to your opener's manual to adjust the limit switches or consult a professional for assistance.


A garage door that won't close can be a frustrating experience, but with a bit of troubleshooting, many issues can be resolved. Regular maintenance and prompt attention to any signs of trouble can ensure that your garage door operates smoothly and reliably. If you encounter persistent problems or are unsure about the diagnosis, don't hesitate to reach out to Rockford Door Company for expert assistance.

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