Why does my garage door reverse before closing?

The most common cause is a misaligned or obstructed safety sensor. Clean both lenses, make sure the brackets are square and at matching height, and confirm both indicator lights are solid rather than blinking.

What does a blinking garage door sensor mean?

A blinking light means the two eyes are not seeing each other. That is caused by misalignment, a dirty lens, an object in the beam, or a damaged wire between the sensor and the opener.

Can I bypass my garage door safety sensors?

No. Bypassing the sensors removes the protection that stops the door on a child, pet, or vehicle, and it is unsafe on any residential door.

How do I test the auto-reverse feature?

Place a solid object such as a wood block flat on the floor in the door path and close the door. It should reverse on contact. If it does not, the opener force settings need adjustment.

Safety sensor service

Safety Sensor Adjustments in Utah

Photo-eye alignment, wiring, and auto-reverse restored so the door stops when it should.

The photo-eyes near the floor are the reason a garage door stops instead of closing on a person, a pet, or a bicycle. When they are misaligned, dirty, sun-blinded, or wired loosely, the door refuses to close or reverses for no obvious reason.

Freedom Garage Doors realigns and secures the sensors, repairs damaged wiring and brackets, and then tests the reversal behavior the sensors exist to provide. We also verify the opener's contact reversal, which is a separate safety system that matters just as much.

Signs you need safety sensor adjustments

The door closes a few inches and immediately reverses
One sensor light blinks or is off entirely
The door only closes if you hold the wall button down
A sensor bracket has been bumped, bent, or knocked loose
Reversal behavior changes depending on time of day or sunlight

How the work is done

1
Check the indicators
Sensor LEDs are read to identify whether the fault is alignment, power, or the receiving eye.
2
Clean and realign
Lenses are cleaned, brackets are squared and tightened, and both eyes are set at matching height facing each other.
3
Trace the wiring
Staples, breaks, corrosion, and loose terminals at the opener are found and repaired.
4
Test the reversal
We confirm the beam stops the door and verify the opener's contact reversal with a test object on the floor.

Two separate safety systems

Photo-eyes stop the door before it touches anything in the opening. Contact reversal is different: it senses resistance and reverses the door when it hits an object. Both are required on modern openers, and both should be tested at least once a year.

Direct sunlight across the receiving eye is a common seasonal cause of reversal problems, which is why a door that misbehaves only in the late afternoon is usually a sensor issue rather than an opener fault. Shielding or repositioning the eye resolves it.

What affects the price

Alignment and bracket repair versus sensor replacement
Extent of wiring damage between the opener and the eyes
Opener compatibility with available replacement sensors
Additional safety adjustments found during testing

Safety Sensor Adjustments questions

Why does my garage door reverse before closing?: The most common cause is a misaligned or obstructed safety sensor. Clean both lenses, make sure the brackets are square and at matching height, and confirm both indicator lights are solid rather than blinking.
What does a blinking garage door sensor mean?: A blinking light means the two eyes are not seeing each other. That is caused by misalignment, a dirty lens, an object in the beam, or a damaged wire between the sensor and the opener.
Can I bypass my garage door safety sensors?: No. Bypassing the sensors removes the protection that stops the door on a child, pet, or vehicle, and it is unsafe on any residential door.
How do I test the auto-reverse feature?: Place a solid object such as a wood block flat on the floor in the door path and close the door. It should reverse on contact. If it does not, the opener force settings need adjustment.

Related services

Safety Sensor Adjustments by city

Freedom Garage Doors provides safety sensor adjustments throughout Salt Lake County, Utah County, and the Wasatch and Tooele county communities listed below.

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Safety Sensor Adjustments in Utah

Signs you need safety sensor adjustments

How the work is done

Check the indicators

Clean and realign

Trace the wiring

Test the reversal