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error Chamberlain
Error Code Green LED not glowing on receiving sensor
Receiving sensor (safety reversing sensor) LED is not illuminated.
? What Causes This
Sensor wire is shorted or broken, or sensors are misaligned.
✓ How to Fix It
- Make sure the sensor wire is not shorted or broken.
- Make sure the sensors are aligned properly so the light beam is unobstructed.
Source: page 26 of the official manual
From the manual
This error code appears in:
Chamberlain Chamberlain Garage Door Opener