The photo eye of an automatic opening garage door is a safety feature.
Setting garage door opener electric eye.
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So reconnect them to the opener and check their alignment.
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If the line of the string isn t level adjust 1 or both garage door sensors by sliding the mounting bracket upward.
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This safety reversing sensor is actually a pair of.
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If the photo eye senses an obstruction it stops the door from closing and potentially prevents damage or injury to a vehicle.
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Continue until the sensors are once again level.
To test the safety eye system start the door closing then use a controlled obstruction to break the safety eye beam.
You are correct that the electric eyes graphic left are a safety feature mandated by federal law.
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Check that the line of the string is level.
They should be pointing directly at each other.
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But they are also required to be connected to the opener and adjusted properly or the garage door opener will not function.
When the beam is broken the garage door movement should reverse direction and the garage door should return to the fully open position.