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Garage Doors: A Handy Guide


At the end of a long day, as you prepare to snuggle under the covers, you discover an unexpected glitch: your garage door won’t close. Whether you’ve encountered this situation or simply need a quick fix, we’ve got you covered. Let’s dive into troubleshooting common garage door issues.

Essential Tools

Before we begin, gather the following tools:

  • Screwdriver

  • Flashlight

  • Pliers

  • Ladder (tall enough to inspect the garage door opener mechanism)

Troubleshooting Steps

  1. Check the Sensors:

  • Located at the bottom of your garage door rails, sensors ensure that nothing obstructs the door’s path during closing.

  • If a sensor blinks, remains unlit, or if you notice the overhead light flashing or clicking, it indicates misalignment or blockage.

  • Wipe the sensor lens, remove debris, and realign the sensors until a solid light is displayed.

Hand adjusting garage door sensor needing clear line of sight fixed DIY

  1. Inspect the Track:

  • Your garage door operates on a roller wheel and track mechanism.

  • Regular wear and tear, as well as accidental impacts, can damage the wheels or track.

  • Look for bends in the track and damaged rollers.

  • Use a hammer to gently correct slight bends.

  • Regular wheel maintenance, including applying silicone-based grease, prevents future damage.

  1. Check the Garage Trolley:

  • The trolley connects your garage door to the ceiling-mounted opener.

  • Look for a rope hanging from the trolley; it engages and disengages the garage door from the opener mechanism chain.

  • If the trolley is in bypass mode, the garage door opener becomes ineffective for both closing and opening.

  • To reengage the trolley, follow these steps: a. Affirm the Rope: Ensure the rope is securely attached to the trolley. b. Release Bypass Mode: If the trolley is in bypass mode, disengage it by following the manufacturer’s instructions.

  • Pull or push down on the garage door once you verify it is clear of objects and debris. If your door doesn’t have a lock, use a bolt or screwdriver in the small holes of the door and rail to act as a lock until a technician can resolve your issue.

diy checking garage door for obstruction tracks and sarasota tampa bay


By following these troubleshooting steps, you can address common garage door issues efficiently. Remember to perform regular maintenance to keep your garage door functioning smoothly.

Fi Home Services is happy to support you and help you DIY in your home. And when you’re ready to say Fi, we’re happy to help you maintain your home so you avoid these issues that may keep you up at night.

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