Blinking indicators
A sensor may be misaligned, obstructed, damaged, disconnected, or poorly wired.
Local service across Greater Houston, Greater Austin, and Sugar Land
Inspect both sensor paths
We check alignment, indicator lights, brackets, lenses, wiring, connections, and obstructions.
Test reversal protection
Photo-eye response and automatic reversal are tested as part of the complete opener safety system.
Correct the real cause
Sensor symptoms can also involve travel limits, force settings, controls, or door movement.
Entrapment protection
Photo eyes help detect an obstruction across the opening. Alignment, lenses, brackets, wiring, connections, sunlight, travel settings, force settings, controls, and mechanical door movement can all affect closing behavior.
A sensor may be misaligned, obstructed, damaged, disconnected, or poorly wired.
The opener may see an obstruction or respond to limits, force, or mechanical resistance.
Safety input, control, wiring, sunlight, or door-travel problems may be preventing movement.
Loose brackets, vibration, wiring faults, glare, or marginal alignment can come and go.
Sensor work should end with a complete closing and reversal test.
Check both lenses, brackets, lights, wiring routes, connections, and the opening.
Align, secure, clean, reconnect, repair, or replace compatible components as needed.
Verify photo-eye response, automatic reversal, travel, force, and normal controls.
Do not defeat the sensors
Do not permanently bypass, relocate, or disable photo eyes to force a door closed. If the garage must be secured, contact LGA Garage Door for safe operating guidance and service options.
Describe the indicator lights, door movement, and anything that changed before the issue began.
Helpful details
Answers to common questions about compatibility, service, setup, and safe operation.
Choose the LGA Garage Door team nearest you for diagnosis, product guidance, installation, setup, and local service details.
Houston Metro
Spring · The Woodlands · Tomball · Cypress
South Houston Metro
Missouri City · Stafford · Richmond · Rosenberg
Austin Metro
Pflugerville · Round Rock · Georgetown · Cedar Park
See what customers across LGA Garage Door’s Texas service areas say about working with our local teams.
“Great work. Awesome customer service. Quick and rapid response”
“Great service and quality!”
Garage doors installed across the Houston metro area over the past 5–6 years.
Committed to the excellence standards tied to IDA membership.
BBB Accredited since February 2026, with an A+ rating.
Clopay, LiftMaster, Hormann, CornellCookson, Blue Giant, and 4Front.
Work is performed by trained LGA Garage Door employees.