Garage Door Won’t Open
If your garage door won’t open, the issue may be with the opener, springs, sensors, or the door itself. This guide covers the most common causes and the steps you can take to diagnose the problem safely.
Common Reasons the Door Won’t Open
- Broken torsion or extension spring
- Opener is unplugged or has no power
- Remote batteries are dead
- Safety sensors are blocked or misaligned
- Door is locked manually
- Opener motor is overheated or malfunctioning
- Door is off-track or jammed
Quick Checks You Can Do
- Verify the opener is plugged in and the outlet has power
- Replace remote batteries and try again
- Check for flashing lights on the opener or wall control
- Ensure the door’s manual lock is not engaged
- Inspect the safety sensors for alignment and obstructions
Signs of a Broken Spring
- Loud bang heard from the garage
- Door feels extremely heavy when lifted manually
- Opener tries to lift but stops or reverses
- Visible gap in the torsion spring
If a spring is broken, do not attempt to open the door with the opener.
Opener-Related Issues
- Humming motor: Opener is trying to lift a stuck or heavy door
- Clicking but no movement: Travel or force settings may be incorrect
- Flashing lights: Often indicates sensor or obstruction issues
- Overheated motor: Opener may need time to cool down
Sensor Problems That Prevent Opening
- Dirty or dusty lenses
- Misalignment due to vibration or bumps
- Loose wiring at the sensor or opener
- Sunlight interference on the receiving sensor
Door Hardware Issues
- Rollers stuck or off-track
- Bent tracks preventing movement
- Frozen bottom seal in cold weather
- Debris blocking the door path
Safe Troubleshooting Steps
- Try lifting the door manually using the emergency release
- If the door is too heavy, stop immediately — springs may be broken
- Clear debris from tracks and check for visible obstructions
- Reset the opener by unplugging it for 10 seconds
When to Stop Troubleshooting
- Door won’t budge manually
- Springs or cables appear damaged
- Opener strains, hums, or overheats
- Tracks are bent or rollers are off-track
When to Call a Professional
- Broken torsion or extension springs
- Door is off-track or jammed
- Opener motor fails repeatedly
- Safety sensors won’t align or stay lit
- Door is too heavy to lift manually
A garage door that won’t open can be caused by anything from a simple power issue to a serious mechanical failure. With safe troubleshooting and timely repairs, you can restore smooth, reliable operation.