To fix a garage door sensor, follow these steps:
- Check the alignment of the sensors. One sensor should have a steady green light (sending the beam), and the other a steady red light (receiving the beam). If the red light blinks, the sensors are misaligned. Gently adjust them until both lights stay steady.
- Clean the sensors. Dirt, dust, and moisture can block the infrared beam. Wipe the sensor lenses with a dry, lint-free cloth to remove any dirt or moisture.
- Check for obstructions in front of the sensors that may be blocking the beam path.
- Check the wiring and power supply to ensure the sensors are properly connected and powered.
- If the sensors are damaged or malfunctioning even after cleaning and aligning, consider replacing them. When replacing, match the sensors to your garage door opener model and carefully connect the wires before reattaching and aligning the new sensors.
These steps often restore the function of garage door sensors, which are safety devices that prevent the door from closing if something is detected in its path.
