Genie 31057R Opto-Luctor RPM Sensor – AC Screw Drive Opener Replacement

The Genie 31057R Opto-Luctor is a genuine replacement RPM / optical feedback sensor used in many older Genie AC screw-drive garage door openers.

Mounted inside the opener powerhead, the Opto-Luctor works with the rotating Opto-Luctor wheel to monitor motor and drive-system rotation. This feedback allows the opener's control system to track motor speed and movement during operation.

A failed or damaged Opto-Luctor can cause erratic door travel, unexpected stopping or reversing, or failure of the opener to complete a normal cycle.

### Product Features

- Genuine Genie replacement component
- Optical RPM / motor rotation sensor
- Designed for compatible AC screw-drive openers
- Monitors motor speed and drive-system movement
- Provides feedback to the opener control system
- Common replacement for erratic travel or RPM feedback problems
- Replaces older Genie part numbers including 31056A
- Direct replacement for compatible 31057R applications
- Opto-Luctor wheel sold separately

### Specifications

- Manufacturer: Genie
- Part Number: 31057R / 31057R.S
- Product Type: Opto-Luctor / RPM Sensor Assembly
- Sensor Type: Optical
- Application: AC Screw Drive Garage Door Openers
- Installation Location: Inside Opener Powerhead
- Quantity: 1 Sensor Assembly
- Opto-Luctor Wheel: Not Included

### What Does the Opto-Luctor Do?

The Opto-Luctor works together with a rotating slotted or shutter-style wheel inside the opener.

As the motor operates, the wheel passes through the optical sensor. The sensor reads this movement and provides feedback that allows the opener electronics to monitor:

- Motor rotation
- Motor speed
- Direction of movement
- Door travel behavior

This information is important for proper opener operation and safety functions.

### Possible Symptoms of a Failed Opto-Luctor

A faulty or misaligned Opto-Luctor may cause:

- Door starts and then stops
- Door unexpectedly reverses
- Door fails to complete full travel
- Intermittent opener operation
- Erratic movement
- RPM or motor feedback problems

These symptoms can also be caused by the Opto-Luctor wheel, motor, coupler, control board, door balance, or other mechanical problems.

Proper diagnosis is recommended before replacing the sensor.

### Compatible Genie Models

Genie lists the 31057R.S for many compatible AC screw-drive models including:

- 1060
- 1560
- 2060L
- 2560
- 3060L
- 3560
- 3860
- CM7600
- CM8600
- CM8600-FN
- PRO95
- H4000
- H6000
- IS525 / IS525-B
- IS550 / IS550-B
- IS850
- IS900 / IS900-B
- IS920
- IMS1000
- ISL950 / ISL950-B
- ISL980 / ISL980-B
- G4050CL
- G5000CL
- G5050CL
- G5500CL
- G5700CL
- G8000CL
- GX9000CL
- GXL9500CL
- GXL9550CL
- GXL9900CL
- GXL1000CL

Always verify your exact opener model and original sensor before ordering. :contentReference[oaicite:1]{index=1}

### Replacement Part Numbers

The 31057R / 31057R.S is associated with or replaces select older numbers including:

- 31057R
- 31057R.S
- 31057RS
- 31056A

### Opto-Luctor Wheel Is Not Included

This listing is for the Opto-Luctor sensor assembly only.

The rotating Opto-Luctor wheel is a separate component and must be ordered separately if damaged.

Depending on opener production date, compatible wheel styles may include:

- 30323A.S screw-on wheel
- 35226A.S snap-on wheel

Genie notes that many compatible openers manufactured after approximately February 2004 use the snap-on 35226A.S wheel, while earlier units may use the screw-on version. Verify the opener date code before ordering the wheel. :contentReference[oaicite:2]{index=2}

### Package Contents

Includes:

- 1 – Genie 31057R / 31057R.S Opto-Luctor Sensor Assembly

Opto-Luctor wheel, motor, control board, opener, rail, and other components are not included.

### Important Compatibility Note

Not every Genie opener uses the same Opto-Luctor assembly.

Before ordering, verify:

- Opener model
- Existing part number
- AC screw-drive configuration
- Opto-Luctor wheel type
- Production date when applicable

### Important Installation Note

Disconnect electrical power to the garage door opener before removing the powerhead cover or servicing internal components.

Make sure the Opto-Luctor wheel passes cleanly through the sensor without rubbing or obstruction.

After installation, operate the opener through a complete cycle and confirm normal travel and reversing behavior before returning it to service.