Why Is My Garage Door Opener Flashing and Not Fully Closing?

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November 18, 2020
Why Is My Garage Door Opener Flashing and Not Fully Closing?

Modern garage door openers are “smarter” than ever before – a garage door opener flashing is trying to tell you something!

Today’s openers come with self-diagnostic abilities that let you figure out what is going on with your door.

If you understand what the flashing lights on your door opener mean, you may be able to avoid an expensive garage door company service call.

Approximately 70% of garage door openers sold today are from one of the top three brands, which include:

  • Liftmaster
  • Chamberlain
  • Sears/Craftsman

If you have one of these openers installed, you can use the information here to figure out why your door is not operating correctly.

It will also let you tell your professional repair service what is going on so they can make the proper repairs if you aren’t dealing with a DIY fix.

If Your Garage Door Opener Flashes One Time

A single flash from your garage door opener means one of the safety sensor wires may be disconnected, broken, or open. For professionals, this is a quick and easy fix to get things working safely again.

If Your Garage Door Opener Flashes Two Times

If your opener flashes two times, it could mean one of two things. One, the sensor wire has shorted. The second possible issue is that the black and white wires have been reversed. When this happens, the safety eyes will not provide a steady glow.

If you notice two flashes, inspect the wiring, or have the professionals do this for you. To test for a short, detach and then reattach the wires to the receiving eye and sending eye going to the opener individually and see which wire doesn’t light. If the sensors are correctly aligned, and the lights glow, the wires must be replaced. If there is no glow, replace the safety sensors.

If Your Garage Door Opener Flashes Three Times

Three flashes mean the wire or door control is shorted. Check the door control wires like you did the safety sensor wires. Another tip is to touch the control wires together, after disconnecting them. If the opener activates when the wires touch, the door control needs replacing. If the opener doesn’t activate, then create a short across the white and red wires using a jumper wire. If this causes the opener to start working again, it means the door control wires need to be replaced.

If Your Garage Door Opener Flashes Four Times

Four flashes typically indicate sensor eyes that are misaligned. If the sensor eyes are misaligned, it means the electronic beam is broken. This keeps the garage door from closing completely, and it will stop, reverse, and re-open.

If Your Garage Door Opener Flashes Five Times

With five flashes, you are either dealing with the failure of the RPM sensor or that the opener’s motor is overheated. You can try unplugging the unit to reset everything. If the lights continue to flash, you must replace the RPM sensor. If the motor still isn’t working, it means the opener has overheated, and you need to replace the logic board.

If Your Garage Door Opener Flashes Six Times

If motor circuit failure occurs, you will see six flashes. At this point, the motor unit won’t work at all, and you will have to replace the receiver logic board.

Fixing a Broken Garage Door Opener in Kansas City

If you go through the steps here and take the recommended steps, but your door still does not operate properly, contact the professionals.

They can find the underlying issue and make the needed repairs.

Contact Team Taylor Doors to fix your garage door opener today.