Garage door light flashes 3 times. A garage door light is a feature found on some garage door openers that illustrates the area all around the garage door when the opener is in usage.
The light is usually stimulated when the opener’s remote control is used to open or close the door and will normally continue on for a set period of time after the door has been shut down.
This feature is constructed to offer added visibility and safety when entering or exiting the garage.
Garage door light flashes 3 times
A flashing light on a garage door opener can be a sign of a range of concerns. One common place problem is when the light on the opener flashes three times.
This specific flashing pattern can reveal a problem with the safety reversing sensors, which are constructed to thwart the door from closing on a person or object.
Issues with the sensors
The safety reversing sensors are positioned on either side of the garage door, in close proximity to the bottom.
They radiate an infrared beam that, when disrupted, sends a signal to the opener to stop and reverse the door’s movement.
If the sensors are not appropriately aligned, or if there is an obstacle blocking the beam, the opener will not be able to detect the interruption and will presume that it is safe to close the door. In this case, the opener’s light will flash three times to indicate a problem with the sensors.
Solution to this problem
To fix this issue, first check that the sensors are properly aligned. The sensors should be pointing right away at each other and there should be a clear path in the middle of them. If the sensors are not properly aligned, modify them until the infrared beam is clear.
After that, check for any obstructions that may be obstructing the beam. This consists of cobwebs, debris, or even a misaligned door.
If an obstruction is present, remove it and test the opener again. If the sensors are properly aligned and there are no obstructions, the problem may be with the wiring of the sensors.
Safety reversing sensor’s LED not working
Last of all, the opener’s light flashing three times could be caused by a problem with the safety reversing sensor’s LED. The LED is in charge for communicating the sensor’s status to the opener.
If the LED is not at work, the opener will not receive the sensor’s signal and will assume that it is safe to close the door.
Solution to this problem
If the problem with your garage door opener is determined to be a malfunctioning safety reversing sensor’s LED, there are a few solutions that can be considered.
One solution is to repair the LED. This may involve replacing the LED or re-soldering connections. However, depending on the age and condition of the opener, it may not be cost-effective to repair the LED and an alternative would be advised.
Another solution is to replace the safety reversing sensor entirely. This can be a more cost-effective option if the sensor is old or has multiple issues that cannot be easily repaired.
Malfunctioning of control board
Another cause of the opener’s light flashing three times could be a nonfunctional control board. The control board is the circuit board that controls the opener’s functions, together with the safety reversing sensors.
If the control board is faulty, it will not be able to receive the signal from the sensors and will assume that it is safe to close the door. In this case, you will need to repair or replace the control board.
Solution to this problem
If it has been concluded that the problem with your garage door opener is due to a nonfunctional control board, there are a few solutions that can be considered.
One solution is to get it repaired. This may consist of replacing defective components or re-soldering connections.
Nevertheless, depending on the age and condition of the opener, it may not be cost-effective to repair the control board and a replacement would be advised.
Another solution is to replace the control board entirely. This can be a more cost-effective option if the control board is old or has multiple issues that cannot be easily repaired.
When choosing a new control board, it’s important to make sure that it is consistent with your particular opener model and that it has the same characteristics as the original board.
If the opener is old or has multiple issues, another option could be to replace the entire opener unit. This will make sure that all elements are working appropriately, and that the opener is up to date with the latest safety and technology showcases.
In the end, we can conclude this by saying that if the light on your garage door opener is flashing three times, it can signal a problem with the safety reversing sensors. To troubleshoot this issue, check that the sensors are properly aligned and there are no obstructions blocking the infrared beam. If the problem persists, check for any frayed or disconnected wires, a nonfunctional control board, or a problem with the safety reversing sensor’s LED. If the problem cannot be fixed through troubleshooting, it is best to get it repaired or replaced with a new one. With the right troubleshooting and repairs, you can ensure the safe and proper operation of your garage door.