Property Management Blog


How to Fix a Garage Door Cable: A Step-by-Step Guide

Garage door cables are crucial for the smooth operation of your door. When a cable snaps or becomes loose, it can cause serious issues, including an inability to open or close the door. 

While fixing a garage door cable may seem intimidating, it’s a manageable task if you follow the correct steps. This guide will walk you through how to safely fix your garage door cable.

Signs Your Garage Door Cable Needs Repair

Before you attempt a repair, it’s important to understand the symptoms of a damaged garage door cable. Common signs that the cable needs attention include:

  • The garage door won’t open or close properly.

  • Visible fraying or snapping of the cable.

  • Uneven door movement or the door leaning to one side.

  • Loud popping or grinding noises while operating the door.

  • The door moves slowly or jerkily.

If you notice any of these issues, it’s likely time to fix or replace your garage door cable.

How to Fix a Garage Door Cable: A Step-by-Step Guide

Important Note: Garage door cable replacement can be dangerous. 

Cables are under a lot of tension and can cause serious injury if not handled properly. If you're not comfortable or experienced with garage door repairs, it’s recommended to call a professional.

If you decide to proceed with the repair, follow these steps:

1. Disconnect the Power

For safety, always disconnect the garage door opener from the power supply to avoid accidental activation during the repair process.

2. Release Tension on the Cables

Before attempting to remove or replace the cable, you’ll need to release the tension. Use a winding bar to safely release tension from the springs. Be sure to follow proper safety protocols, as releasing tension improperly can cause the springs to snap.

3. Lift the Door Manually

Once the tension is released, lift the door manually to ensure that the cable is no longer bearing the weight of the door. This step is essential before working on the cables.

4. Remove the Damaged Cable

Locate the broken or damaged cable, typically near the bottom of the door. Using pliers, remove the cable from the drum at the top and the lower pulley system. Carefully detach the cable from the door bracket.

5. Install the New Cable

To install the new cable, start by threading it through the cable drum at the top of the door. Attach it securely to the bottom bracket of the door, ensuring that the cable is properly wound around the drum.

6. Re-tension the Springs

Once the new cable is in place, re-tension the springs using a winding bar. Be sure to follow the manufacturer's instructions for tensioning the springs to avoid over-tightening, which can damage the system.

7. Test the Garage Door

After completing the installation, reconnect the power to the garage door opener and test the door by opening and closing it several times. Ensure that the door moves smoothly and that the cables are properly functioning.

When to Call a Professional

If you’re unsure about fixing a garage door cable yourself, or if the issue persists even after following these steps, it’s time to call in a professional. Handling the high-tension springs and cables can be dangerous, so it’s always a good idea to seek expert help if you're not confident in your repair skills.

Conclusion

Fixing a garage door cable can be a straightforward task if you follow the right steps. However, due to the tension involved in the system, it’s important to prioritize safety. 

If you’re uncomfortable with the repair, don’t hesitate to contact a professional garage door technician. With the proper tools and care, your garage door will be back to working like new in no time!


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