Garage Door Opener Flashing? What It Means and How to Fix It
If you walk into your garage and notice a light on your garage door opener blinking, it means there is an issue with a component or setting for your opener or door. It’s important to know what that light signal means, what may be causing the issue and whether it’s something you can safely troubleshoot on your own or if you should call a professional.
When a garage door opener light flashes, it indicates a diagnostic code, not a random glitch. We’ll help you decode what your garage door opener flashing means and how to fix it.
Why Is My Garage Door Opener Flashing?
Diagnostic error codes are the system’s way of telling you a specific problem has been detected. The number of flashes and sometimes the color correspond to a particular issue, and the codes vary by brand. It’s a built-in safety feature that warns you of some common failures, such as power problems, internal opener malfunctions, travel limit settings and sensor issues.
Start With Four Simple DIY Checks
You can start your garage door opener troubleshooting with the following four checks.
1. Check the Safety Sensors
Safety sensors are a common cause of a garage door light blinking and not closing. They’re located on the left and right sides of your garage door opening, close to the garage door and pointing at each other across the doorway. Inspecting these includes:
Looking for obstructions along the door’s travel path.
Sometimes the issue is a simple power interruption. To verify this, you should examine:
The plug: To check the plug, physically confirm the garage door opener’s power cord is pushed securely and completely into the ceiling outlet, as the opener’s vibrations can sometimes work it loose over time.
The outlet: To verify the outlet has power, you should unplug the opener and plug in a device you know works, like a phone charger or lamp and also press the reset button if your outlet has one.
The circuit breaker: For the circuit breaker, locate your home’s main electrical panel and look for a tripped switch in the off or middle position. Reset it by pushing it firmly to off, then flipping it back to on.
3. Test the Wall Switch and Remotes
Remotes and switches can fail, so it’s advisable to:
Test the main wall switch mounted on the control panel inside your garage.
Change the remote batteries and test.
Look for a vacation lock mode on the control panel, usually a small button with a padlock icon labeled lock or vacation, which blinks or is lit when engaged.
4. Confirm Travel Limit Settings
If your door’s travel limits are off, the opener will treat it as an obstruction and reverse, triggering an error code. Test and change your settings by:
Running the door through one full open-and-close cycle to observe its stopping points.
Observing if the door closes securely against the floor and opens high enough for your car to clear.
Making small adjustments as needed using the labeled travel limit screws or buttons on the opener motor.
Signs You Need a Professional
If your garage door opener is flashing but not working, look for these signs that indicate you need to call a professional:
Persistent flashing: If the opener light continues to flash after basic checks, this signals a more complex internal problem, such as a faulty logic board or a wiring short.
Loud grinding or straining noises: If a mechanical part such as a stripped gear or a worn-out motor is failing, continuing to use the door can cause further damage.
Visible damage: Frayed wires or a rapidly flashing garage door sensor light are clear signs of an electrical hazard that should only be handled by a trained technician.
Powerless opener: If you have already confirmed that the outlet and circuit breaker are working, the unit itself requires professional service.
If you are in doubt, and if no DIY tests help, it’s always best to call a professional. Attempting to fix components such as opener wiring and logic boards or the doors’ mechanical parts, such as high-tension springs and cables, can easily lead to more damage or even serious injury.
Trust Viking Overhead’s Expert Technicians
If your garage door opener is not closing the door, and you’re still unsure about what’s wrong after you’ve done DIY checks, it’s time to call Viking Overhead. We focus on safety, speed and providing you peace of mind that your garage door will remain reliable. We provide comprehensive solutions to all your garage door needs with:
Fast, accurate diagnosis: Our technicians are experts in the specific meanings of garage door opener flashing error codes, making quick diagnoses and getting straight to work.
Fully stocked service vehicles: Our service vehicles are fully stocked with a wide range of high-quality replacement parts, so our technician can complete the repair on the first visit.
Safety as our priority: After every repair, we conduct a thorough safety inspection to ensure your door operates safely.
24/7 emergency service: As a family-owned team, we are committed to the safety of our community, ensuring you get a fast, reliable solution right when you need it most.
Get Your Garage Door Fixed Today
We know how to fix a flashing garage door opener quickly, with minimal disruption to your day. You can fill out our online form to schedule your repair, or call us at 817-600-4224 today.
