The Genie 39360R.S Optical Encoder (also referenced as 39360RS) is an OEM replacement RPM/position feedback sensor for select Genie garage door openers. This optical encoder reads an indexed wheel on the motor shaft and sends speed and direction information to the opener’s control board, allowing accurate door travel, limit positioning, and safety reversal functions. It is a common repair part when an opener begins to start and stop unexpectedly, reverses during travel, or displays an RPM/encoder fault. Use this genuine Genie replacement in residential or light-commercial applications where the original encoder has failed. Compatibility is model-specific; confirm fitment by checking your opener’s parts diagram or service manual for part number 39360R.S.
Designed for direct plug-in to the opener’s logic board, the encoder mounts near the motor and aligns with the slotted encoder wheel for reliable optical sensing. Installation typically requires disconnecting power, removing the opener cover to access the motor end, replacing the sensor assembly, and routing the factory-style harness to the control board. After replacement, follow the Genie instructions to run a setup cycle and reprogram/open-close travel limits and force settings as needed. For safety, work with power disconnected, keep clear of moving parts, and consult a qualified technician if you are unsure about opener service. This OEM Genie optical encoder is an ideal replacement part for maintaining proper operation, restoring consistent door travel, and ensuring the control system can accurately monitor motor RPM on compatible Genie belt-drive and chain-drive openers.
