Overhead Door Safety Sensor Bypass Mode Due to Sensor Fault

Garage door will not close from remote or wall button unless wall button is held down continuously

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Possible Causes

Blocked or misaligned photo eyes, Defective safety sensor, Broken sensor wire, Sunlight interference on sensor

How to Fix / Troubleshooting

Safety first: Holding the wall button bypasses the safety sensors on many models. Use this only for testing and never as a permanent solution.

  • 1. Inspect sensor LEDs: Check that both safety sensors near the floor have solid LEDs. If one is off or flickering, alignment or wiring is the issue.
  • 2. Clear obstructions and clean lenses: Remove any items in the sensor path and clean the lenses with a soft cloth.
  • 3. Realign sensors: Loosen the mounting brackets and adjust until both LEDs are solid. Tighten brackets while holding alignment.
  • 4. Check for sunlight interference: If the sun shines directly into a sensor, shade it temporarily and test. If this resolves the issue, consider installing sun shields or slightly repositioning the sensors.
  • 5. Inspect wiring: Look for damaged or loose wires at the sensors and opener terminals. Repair or replace as needed.
  • 6. Test normal operation: Once sensors are working, the door should close with a single press of the wall button or remote without holding the button.
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Repair Difficulty

Easy 2/5

Required Part

Safety Sensor Kit (Photo Eyes)
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