Why Your Garage Door Suddenly Stopped Working — 7 Most Common Causes
One moment your garage door works fine. The next it does not. No warning, no gradual decline — just a door that will not move when you need it to. It is one of the most frustrating things that can happen to a homeowner, especially when your car is on the wrong side of it and you are already running late. The good news is that most garage door failures come down to a handful of causes — and a professional can diagnose and fix the problem in a single visit. This guide walks you through the seven most common reasons a garage door suddenly stops working, how to identify which one you are dealing with, and what to do about it. Teo Garage Doors provides same-day diagnosis and repair in Manassas Park and nearby areas. Call 571-505-8443. Why did my garage door suddenly stop working? The most common reasons a garage door suddenly stops working are a broken spring, a malfunctioning opener, dead remote batteries, misaligned safety sensors, a disconnected trolley, broken cables, or a power issue. Broken springs are the leading cause in our area — especially after winter when temperature changes accelerate spring wear. Call Teo Garage Doors at 571-505-8443 for same-day repair. Who can fix my garage door that stopped working near Manassas Park? Teo Garage Doors provides same-day garage door repair in Manassas Park and nearby areas including Ashburn, Woodbridge, Gainesville, and Fairfax. With over 20 years of experience, we diagnose the problem accurately and fix it right the first time. Call 571-505-8443. Before You Call — Check These Things First Before assuming the worst, there are a few quick checks worth doing. They take less than two minutes and may save you an unnecessary service call. Check whether the wall button inside the garage works. If it does but the remote does not, the issue is the remote — not the opener. Replace the batteries and try again. Check whether the opener lights are on. If there are no lights and the wall button does not respond either, the opener may have lost power. Check the outlet it is plugged into and look for a tripped circuit breaker in your home’s electrical panel. Check the sensors near the floor on each side of the door. Both indicator lights should be solid. If either is off or blinking, a sensor issue may be preventing the door from operating. If none of these quick checks resolve the problem, one of the seven causes below is almost certainly the reason. The 7 Most Common Reasons a Garage Door Stops Working 1. Broken Garage Door Spring This is the number one cause of a garage door that suddenly stops working. Garage door springs counterbalance the full weight of the door. When one breaks, the door becomes too heavy for the opener to lift and it stops moving. How to identify it: You heard a loud bang from the garage — many homeowners describe it as sounding like a gunshot. The opener may run but the door will not budge, or it will lift only a few inches before stopping. You may also see a visible gap or separation in the spring above the door. What to do: Do not attempt to force the door open or operate it manually. A door with a broken spring is extremely heavy and can drop suddenly. Call Teo Garage Doors at 571-505-8443 immediately. Seasonal temperature changes in our area accelerate spring wear. Most springs last between 7 and 10 years — often closer to 7 in our climate. For more information read: Broken Garage Door Spring — Signs, Dangers and What to Do 2. Garage Door Opener Failure The opener is the motorized unit that drives the door. When it fails, the door stops responding entirely — or the unit runs but nothing moves. How to identify it: The opener runs but the door does not move and the springs are intact. The unit makes grinding, clicking, or unusual sounds. The opener is more than 10 years old and has been showing signs of weakness — running louder, responding slowly, or requiring multiple presses. What to do: One important distinction — if the opener runs and sounds completely normal but the door does not move, the problem may not be the opener at all. It may be the spring, a broken cable, or a disconnected trolley. Call Teo Garage Doors for a proper diagnosis before spending money on parts. For more information read: Garage Door Opener Not Working — Troubleshooting Guide 3. Dead or Weak Remote Batteries This is the simplest cause on the list — and the one most people overlook in the stress of the moment. How to identify it: The opener and wall button work fine but the remote does not respond. Or the remote only works when you are standing very close to the opener. What to do: Replace the batteries with fresh ones and try again before assuming something more serious is wrong. If new batteries do not fix the problem, the remote may need to be reprogrammed. Call Teo Garage Doors at 571-505-8443 and we can walk you through the process for your specific opener model. 4. Misaligned or Blocked Safety Sensors Every modern garage door opener has two safety sensors mounted near the floor on each side of the door. They send an invisible beam across the opening. If anything interrupts that beam — or if the sensors are knocked out of alignment — the opener will not allow the door to close and may prevent it from opening fully. How to identify it: The opener light blinks repeatedly when you press the button. One or both sensor indicator lights are off, blinking, or amber instead of solid green. What to do: Check for any object blocking the sensor path — even a small piece of debris, a leaf, or a cobweb can trigger the safety system. Wipe the sensor lenses clean with a
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