Optical Encoder (RPM Sensor) 39155R.S- DC Screw Drive Models

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The Optical Encoder is also known as the RPM sensor. The 39155R.S is used in certain model Genie screw drive garage door openers. (See below list for compatibility by model) Replac ing this part may resolve any issue of short traveling problems or limits drifting on the garage door opener. Compatible with models; TriloG™1200 (3064), TriloG™ 1500 (4064), PowerMax® 1200 (3062), MachForce (4063), PowerMax® 1500, Excelerator® 1000, Excelerator® II (4062) If your garage door opener model is not on this list, please contact Genie for additional compatibility questions Genuine Genie Replacement Part Show more