Sensor Calibration in Kent, WA

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Sensor Calibration in Kent, WA

Garage door safety sensor calibration in Kent typically costs between $95 and $165. This service ensures your photo eyes are perfectly aligned and communicating, which is required for the door to close. If your door reverses unexpectedly or the lights on the motor unit flash rapidly, your sensors likely need professional adjustment or alignment, a task we perform daily for homeowners in Kent.

At Servo Garage Doors Kent, we don’t just “tweak” the sensors. We perform a full diagnostic check on the alignment, wiring integrity, and signal strength to ensure your system meets safety standards. If you are struggling with a door that refuses to close unless you hold the wall button down, call us at (425) 906-3489. We provide upfront, written pricing before we touch a single tool, adhering to Clause 1 of The Haven Standard. Whether you need our Garage Door Repair services for a newer unit or an older system from brands like LiftMaster or Craftsman, we ensure your safety reversal system functions exactly as intended.

If you are experiencing broader issues, our Garage Door Repair in Kent page covers the full range of mechanical and electrical services we provide. We are an independently owned and operated business serving Kent, and we are ready to help you get your door back in operation.

When You Need Sensor Calibration

Garage door sensors, also called photo eyes, are the two small safety devices located at the bottom of your door tracks. They project an invisible infrared beam across the opening. When that beam is broken, the door stops or reverses. In Kent, we often see alignment issues caused by simple ground shifting in older neighborhoods or vibrations from heavy traffic on local roads. You likely need professional calibration if you notice these specific symptoms:

• The door reverses before hitting the floor: If the door starts to close but immediately stops and reverses back up, the sensors are likely misaligned or obstructed.
• Rapid flashing lights on the motor: Most modern openers, including Raynor and Amarr models, use a specific flash code to indicate that the safety sensors are not communicating.
• Manual override required: If you have to hold the wall-mounted button down constantly to get the door to close, the system has defaulted to a safety lockout because it cannot “see” the other sensor.
• Recent impact or vibration: If a vehicle bumped the track or a heavy object was moved near the door, the mounting brackets may have shifted just enough to break the beam’s line of sight.
• Intermittent operation: Sometimes the door works, and sometimes it doesn’t. This often points to loose wiring at the sensor connection or at the back of the motor unit, which we can identify and secure.

Safety is the primary concern here. A garage door is heavy, and if the safety sensors are bypassed or malfunctioning, the system loses its most critical line of defense against injury. If you suspect your sensors are failing, do not attempt to force the door closed or bypass the system. Call (425) 906-3489 to have a technician verify the alignment safely.

Our Sensor Calibration Process

Under The Haven Standard, we follow a strict, documented process for every service call. We do not guess at the problem. We show you the failure, explain the fix, and provide a written price before work begins. This is how we handle sensor calibration:

1. Visual Inspection: Our technician arrives and first checks the mounting brackets. In Kent, we often find brackets that have loosened over time due to the frequent temperature changes affecting the garage floor concrete.
2. Alignment Verification: We use a laser alignment tool to check the beam’s path. If the sensors are off by even a fraction of an inch, the door will not function reliably.
3. Wiring Check: We inspect the low-voltage wiring running from the sensors to the motor unit. We look for frayed wires, loose connections, or rodent damage, which is surprisingly common in suburban areas.
4. Lens Cleaning: Sometimes, the fix is as simple as cleaning the lenses. We remove dust, cobwebs, and grime that can interfere with the infrared signal.
5. Signal Testing: Once adjusted, we test the system multiple times to ensure the door closes consistently without hesitation.
6. Documentation: Per Clause 4 of The Haven Standard, we provide a photo record of the findings. You will see exactly what was wrong and how we fixed it before the technician leaves your property.

We service all major brands, including Genie and Wayne Dalton, and our technicians carry a full inventory of replacement sensors if yours are damaged beyond repair. You receive a flat, written price for the calibration or replacement before we start, so there are no surprises on the final invoice.

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Sensor Calibration Pricing in Kent

We provide upfront, written pricing for all services. We do not hide behind “call for a quote” tactics. The cost for sensor calibration typically depends on whether it is a simple adjustment or requires replacement of the sensor units themselves.

The ranges above include the technician’s time, the diagnostic process, and the calibration work. If we determine that the sensors are not the issue and the problem lies within the logic board of your opener, we will provide a separate written estimate for that repair, which may include Spring Repair if needed. We offer a Free Second Opinion on any written estimate from another company. If you have a quote from someone else, bring it to us, and we will evaluate the work needed at no cost to you. Call (425) 906-3489 to schedule your appointment.

FAQs - Sensor Calibration

Why does my garage door only close when I hold the button?

This is a safety feature built into your opener to tell you that the safety sensors are blocked or misaligned. The system assumes a hazard exists and disables the “one-touch” close function to prevent the door from hitting an object or person, requiring you to hold the button to ensure you are watching the door as it closes. Call (425) 906-3489 to have us realign your sensors and restore normal operation, or if you need Track Realignment.

Can I fix misaligned sensors myself?

While you can visually inspect the brackets to see if they are loose, we strongly recommend against forcing the sensors or trying to rewire the system yourself. Garage door systems operate under high tension, and the sensors are part of a safety circuit that protects your family and property. If you aren’t sure how to read the diagnostic lights on your motor unit, it is safer to have a professional handle it. We can usually complete this in a single visit.

How long does a sensor calibration take?

Most sensor alignments and calibrations take between 30 and 60 minutes. Because we carry common replacement parts on our trucks, we can often complete the repair on the spot if we find that the sensors are faulty rather than just misaligned, including Cable Repair if necessary. We respect your time, which is why we provide a clear scope of work before we begin.

Do I need to replace the whole opener if the sensors are broken?

Almost never. Sensors are independent components that communicate with the motor unit. Even if your sensors are damaged or old, we can replace just the photo eyes themselves with compatible units. We do not recommend replacing a functional opener just because the sensors need attention. We will always provide an honest, written assessment of what is actually required to get your door working safely.

If your garage door is acting up, don’t leave it to chance. Whether it is a simple alignment issue or a more complex wiring problem, we have the experience to fix it right the first time. We are available to take your call 24/7. Call (425) 906-3489 today for a free estimate or to schedule a service visit.

Written by Marcus Deller, Owner at Servo Garage Doors Kent, serving Kent.