Genie 39360R.S Optical Encoder / RPM Sensor – Dual Encoder Assembly for Belt & Chain Drive Openers

Genie 39360R.S Optical Encoder / RPM Sensor – Dual Encoder Assembly for Belt & Chain Drive Openers

The Genie 39360R.S is a genuine replacement optical encoder, also known as an RPM sensor or Dual Encoder Assembly, for select Genie DC belt-drive and chain-drive garage door openers.

Mounted at the motor, the encoder monitors motor rotation and provides speed, direction, and travel-position feedback to the opener control board.

A damaged or failing encoder can cause the opener to stop after only a short distance, reverse unexpectedly, lose accurate travel positioning, or experience drifting open and closed limits.

### Product Features

- Genuine Genie replacement part
- Part number 39360R.S / 39360RS
- Also identified as a Dual Encoder Assembly
- Optical motor RPM / position sensor
- Designed for select Genie DC belt-drive and chain-drive openers
- Monitors motor rotation and travel
- Provides feedback to the opener control board
- Helps maintain accurate open and closed travel limits
- Common repair for short-travel or drifting-limit problems
- Replacement wiring harness adapter included where applicable
- No remote-control programming required

### Specifications

- Manufacturer: Genie
- Part Number: 39360R.S
- Supplier Reference: 39360RS
- Product Type: Optical Encoder / RPM Sensor
- Alternate Description: Dual Encoder Assembly
- Sensor Type: Optical
- Application: Residential Garage Door Opener
- Compatible Drive Types: Belt Drive / Chain Drive
- Installation Location: Motor Assembly
- Quantity: 1 Encoder Assembly

### What Does the Encoder Do?

The optical encoder monitors the rotation of the garage door opener motor.

During operation:

Motor → Encoder Wheel → Optical Sensor → Control Board

As the motor rotates, the encoder sends electronic feedback to the control board.

The opener uses this information to monitor:

- Motor speed
- Direction of rotation
- Door travel distance
- Open position
- Closed position
- Proper motor movement

Accurate encoder feedback is important for consistent garage door travel.

### Common Signs of a Failed Encoder

A faulty encoder may cause:

- Garage door travels only a short distance and stops
- Door starts and unexpectedly reverses
- Open or closed limits begin drifting
- Door stops at inconsistent positions
- Opener repeatedly loses accurate travel
- Motor operates but control board does not correctly detect movement
- Intermittent opener operation

These symptoms can also result from a control board, motor, wiring, carriage, belt, chain, or garage door problem.

Proper diagnosis is recommended before replacing electronic components.

### Compatible Genie Models

Genie lists the 39360R.S for compatible models including:

- Genie 3024
- Genie 4024
- Genie 3022
- Genie 3042
- Genie 4022
- Genie 4042
- ChainMax 1000
- SilentMax 1000
- SilentMax 1200
- IntelliG 1000
- IntelliG 1200

Additional production variations may use the same encoder.

Always verify your opener model and original encoder part number before ordering.

### Overhead Door Compatibility

The same encoder is also used in select compatible Overhead Door operator families, including certain:

- Odyssey Series
- Destiny Series

Compatibility is model-specific.

Do not order based only on brand or appearance.

### Single & Dual Encoder Replacement

Some supplier documentation describes the 39360R.S as a:

SINGLE & DUAL ENCODER REPLACEMENT ASSEMBLY

This replacement kit can service compatible opener configurations using the applicable Genie optical encoder system.

The included harness configuration allows compatibility with supported production variations.

### Wiring Harness Compatibility

Genie installation instructions note that some original units use different encoder harness connectors.

Depending on the opener, the replacement may use:

- 6-pin encoder harness
or
- Included 4-pin replacement harness adapter

Compare the original connector and follow Genie installation instructions during replacement.

### Important Compatibility Notice

The 39360R.S is NOT universal across all Genie DC openers.

For example, some newer or different Genie models use other encoder assemblies.

Do not select the replacement based solely on the fact that the opener is a Genie belt-drive or chain-drive model.

Verify:

- Opener model
- Original encoder part number
- Motor configuration
- Wiring connector
- Production generation

before ordering.

### Package Contents

Includes:

- 1 – Genie 39360R.S Optical Encoder / RPM Sensor Assembly
- Compatible Encoder Wiring Harness / Adapter as supplied
- Installation Hardware

Garage door opener, motor, control board, belt, chain, rail, and other components are not included unless specifically stated.

### Important Installation Note

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

The garage door should be disconnected from the opener and placed in the closed position before repair.

After replacing the encoder:

- Verify all wiring harness connections
- Confirm the encoder is properly seated on the motor
- Reapply opener power
- Check and adjust travel limits if required
- Test the opener through several complete cycles
- Test safety reversing sensors
- Confirm automatic reversal operates correctly

If the opener still travels only a short distance after replacement, recheck the encoder harness connections and diagnose the remaining motor/control system.