Blinking Sensor Lights
Usually caused by misalignment, dirty lenses, loose brackets, or wiring issues.
Sensor Testing & Alignment
Garage Door Safety Sensor Service
Valiant Garage Door handles garage door safety sensor problems that cause doors to reverse, refuse to close, blink at the opener head, or fail the auto-reverse safety test.
Common Safety Sensor Problems
Door Will Not Close
When the beam is interrupted or the sensor circuit is failing, the opener may stop or reverse immediately.
Intermittent Closing
Sunlight, vibration, damaged wires, or loose fasteners can create random failures that need a real inspection.
What We Check
- Sensor alignment and mounting brackets
- Lens cleaning and obstruction checks
- Wire condition at the opener head and jamb
- Auto-reverse function and full closing cycle
- Related opener logic if the issue is not sensor-only
Related Pages
Garage Door Service Links
Use these connected service pages to compare emergency repair, spring replacement, opener installation, maintenance, and custom/new door options without losing the main path.
Services Overview
Start here for every garage door repair, spring, opener, maintenance, and service-area path.
Emergency Garage Door Repair
Primary urgent repair hub for stuck doors, broken springs, snapped cables, and unsafe doors.
Spring Replacement Cost & Time
Broken spring pricing, 30 minute to 1 hour timing, warranty, and safety answers.
Opener Repair Diagnostics
LiftMaster diagnostics, sensors, travel limits, force settings, remotes, keypads, and repair-vs-replace guidance.
Opener Installation Pricing
Compare LiftMaster models plus $229 standard overhead and $249 wall-mount installation starting labor.
Maintenance & Safety Tune-Ups
Tracks sticking, rollers, lubrication, door balance, tune-up frequency, and safety inspection answers.
Custom & New Garage Doors
Moenave custom/new door planning, quote factors, replacement context, and design support.
Service Areas
Connected city pages for Pleasanton, Dublin, Livermore, Fremont, San Ramon, Danville, Sunol, and nearby East Bay routes.
Book This Service
Call 9254094974 or request an appointment online.