Troubleshooting a One-Piece Garage Door: Why It Doesn’t Stay Up?

Understanding the Problem

My one-piece garage door does not stay up when I open it by hand; it wants to come back down slowly. Can I fix that myself, or do I need to call someone? The answer often lies in the spring system. When a garage door fails to remain open, it typically indicates an issue with the door’s springs. A broken or worn-out spring, or improper tension levels, could be causing this problem.

Identifying Broken Springs

Whenever this problem arises with a one-piece garage door, the first thing to check is for broken springs. One-piece garage doors can have multiple extension springs, typically two on each side. A broken spring may not be immediately visible, so it’s crucial to examine them closely. Open the door fully and inspect for any separation in the springs, as this is often more evident when the springs are fully extended.

Understanding Safety Mechanisms

One-piece garage door springs, or extension springs, are equipped with built-in safety mechanisms that prevent them from extending beyond their intended capacity. Two rods are located inside the spring, which slide along one another. When the spring reaches maximum extension, the rods hook together, halting further movement. If you observe a broken extension spring, the safety rods will be visible, indicating that replacement is needed.

Adjusting Spring Tension

Another common issue might be insufficient tension on the springs when the door is fully open. Adequate tension is necessary for the door to remain in the upright position. If the door lacks this tension, you’ll notice slack in the chain that connects to the bottom of the spring. In the case of insufficient tension, you’ll need to adjust the springs to ensure the door stays up securely.

Preparing for Adjustment

Before attempting to adjust the springs, it’s crucial to approach this task with caution. These springs can be dangerous if mishandled. Start by ensuring the garage door is in the fully open position. If you have a garage door opener, you may need to disengage it by pulling the emergency release cord. This will allow you to open the door freely and maintains it in the open position while you work.

Adjusting the Springs Safely

With the door in the fully up position, proceed to adjust the springs by examining the chain connected to the bottom of the extension spring. The chain runs down to the wall and is typically screwed into a piece of wood. Check the hook attached to the spring and determine the link it connects to. Move the hook down several links to tighten the chain and ensure proper tension in the springs.

Seeking Professional Help

If these steps do not resolve the issue, you may need to call a garage door technician. A professional can assess whether the springs are inadequate for the weight of your door or if there is another underlying issue. While DIY fixes can save time and money, safety must always come first. If in doubt, contacting a garage door company is advisable to ensure proper repairs and avoid personal injury.

Frequently Asked Questions

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We receive many calls involving the safety eyes preventing the garage door from closing due to the safety eyes malfunctioning or simply being out of alignment. If your garage door opens fine, but will not close using the wall console, then this could be a safety eye issue. If the opener light flashes and/or the motor makes a clicking sound, this is a warning that you have a safety eye issue. You can begin by looking at the safety eyes themselves. You should see a steady light on both of the safety eyes. If one of the lights is flashing then you may just need to simply align the eyes properly. This is done by physically moving/adjusting the safety eyes until you have both safety eyes with a solid light showing.

If both safety eyes are showing a solid light, then you may have malfunctioning safety eyes.

A simple test is to press and hold the wall console to close the door. If the garage door closes while holding the wall console button, then you probably have a safety eye issue. 

We offer a full line of commercial garage door openers to fit the needs of the customer. For smaller commercial sectional garage doors we recommend using the Liftmaster 8900W these operators are rated for 14 feet maximum height and 300lbs total weight. For rolling steel doors we recommend the 8950W for doors up to 12 feet maximum height and maximum weight of 850lbs.

For large sectional commercial doors we recommend the Liftmaster J or H. These are equipped with MyQ for automated opener control and are equipped with a soft start/stop feature.

The Liftmaster J, jackshaft opener is available in ⅓, ½, ¾ and 1 horse power. The horse power needed is based on the total square footage of the sectional door it will be installed on.

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