Why Does My Garage Door Partially Opens Then Stops Suddenly? Troubleshooting Guide

Is your garage door acting up, partially opening before coming to a sudden halt? Dive into this comprehensive troubleshooting guide to uncover the potential causes behind this perplexing problem and learn effective strategies to address it. From sensor malfunctions to track misalignments, we’ll explore the various factors that could be causing your garage door to partially opens then stops unexpectedly.

Garage Door Partially Opens Then Stops

Understanding Why Your Garage Door Partially Opens Then Stops

Sensor Malfunction

One of the most common reasons for a garage door to partially open then stop is a malfunctioning sensor. Garage doors are equipped with safety sensors that detect obstructions in the door’s path. If these sensors are misaligned, dirty, or obstructed, they may falsely detect an obstacle and trigger the door to stop abruptly.

Track Misalignment

Another potential cause of a garage door partially opening then stopping is track misalignment. The tracks that guide the door’s movement must be properly aligned to ensure smooth operation. If the tracks are bent, warped, or improperly aligned, it can cause the rollers to bind or derail, leading to the door stopping prematurely.

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Obstructed Door Path

Sometimes, an obstruction in the door’s path can cause it to partially open then stop suddenly. Common obstructions include objects stored too close to the door or debris blocking the tracks. Clearing any obstacles from the door’s path can help resolve this issue and allow the door to open fully.

Read too: Why Your Liftmaster Garage Door Wonโ€™t Stay Closed and How to Fix It? Troubleshooting Tips

Tension Spring Problems

Issues with the tension springs responsible for counterbalancing the weight of the garage door can also cause it to partially open then stop. If a tension spring is broken or improperly adjusted, it can create an imbalance in the door’s movement, leading to sudden stops.

Troubleshooting Steps to Resolve the Issue

Check Sensor Alignment

Start by inspecting the alignment of the safety sensors located near the bottom of the garage door tracks. Ensure that they are facing each other directly and that there are no obstructions blocking their line of sight. Clean the sensor lenses with a soft cloth to remove any dirt or debris that may be interfering with their operation.

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Verify Track Alignment

Inspect the tracks along which the garage door rollers move to ensure they are properly aligned. Use a level to check for any deviations from the horizontal plane and adjust the track brackets as needed to correct any misalignments. Additionally, lubricate the tracks with a silicone-based lubricant to ensure smooth movement.

Remove Obstructions

Inspect the area around the garage door to ensure there are no obstructions blocking its path. Clear away any objects stored too close to the door or debris that may be blocking the tracks. Once the path is clear, test the door to see if it opens fully without stopping.

Inspect Tension Springs

Carefully examine the tension springs located above the garage door to ensure they are intact and properly tensioned. Look for signs of wear or damage, such as fraying or rusting, and test the tension by manually lifting the door to see if it moves smoothly and stays in place when partially open.

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Conclusion

Experiencing issues with a garage door that partially opens then stops suddenly can be frustrating and inconvenient. However, by following the troubleshooting steps outlined in this guide, you can identify the underlying causes of the problem and implement effective solutions to restore your garage door to proper working condition.


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