Commercial LiftMaster RPM Sensor Replacement in Golden, CO

At Harmony Garage Door Repair Denver, we recently completed a commercial service call in Golden, Colorado, where a business was experiencing issues with a LiftMaster commercial garage door opener. Their 15-foot commercial door was stopping after just a few inches of movement — a classic sign of a failing RPM sensor. After diagnosing the problem, our team replaced the defective sensor and restored smooth, reliable operation.

Call us today (720) 999-5723.

What an RPM Sensor Does on a Commercial LiftMaster Opener

The RPM (Revolutions Per Minute) sensor is a critical component inside a LiftMaster commercial motor. It works by monitoring the motor’s speed and shaft position using a small flywheel and optical sensor.

A properly functioning RPM sensor allows the opener to:

  • Maintain safe, consistent motor speed

  • Provide soft start/stop functionality

  • Detect obstructions and prevent damage

  • Keep the door moving smoothly throughout travel

When the sensor starts to fail, the opener can no longer accurately read motor rotation — causing the system to shut itself down for safety.

Symptoms of a Failing RPM Sensor

Businesses often notice:

  • The door moves a few inches, then stops

  • The opener reverses unexpectedly

  • The motor hums but doesn’t engage properly

  • The door won’t complete a full cycle

  • Inconsistent or jerky operation

These issues can interrupt workflow, reduce safety, and increase wear on the opener. Fortunately, replacing the RPM sensor is a fast and effective repair.

Our Recent Commercial Service in Golden

For this Golden-based business, the 15 ft commercial door was halting mid-travel every time they tried to open it. After inspection, we confirmed the RPM sensor was no longer reading the flywheel correctly.

Our repair included:

  • Full diagnostic testing of the LiftMaster opener

  • Removal of the faulty RPM sensor

  • Installation of a new OEM sensor

  • Recalibration and safety testing

  • Full movement and balance check of the 15-foot door

Immediately after replacement, the door operated smoothly from open to close — no stalling, no reversing, no hesitation.

Why Golden Businesses Trust Harmony Garage Door Repair Denver

Commercial garage door systems require specialized training, precision, and high-quality parts. Businesses in Golden rely on us because we provide:

  • Fast, on-site commercial diagnostics

  • Expert LiftMaster opener repairs and replacements

  • High-cycle components built for heavy-duty use

  • Honest recommendations and transparent pricing

  • Emergency repair availability

We work with warehouses, loading docks, manufacturing buildings, retail centers, auto shops, and industrial sites across the entire Denver metro.

See our full garage door repair services.

Need Commercial Garage Door Opener Repair in Golden?

If your LiftMaster opener is stopping mid-cycle or behaving unpredictably, your RPM sensor may be the culprit. Our team can diagnose the issue quickly and get your commercial door running safely and reliably again.

Contact Harmony Garage Door Repair Denver today for fast commercial service and free estimates.

or Call (720) 999-5723