LiftMaster K76-34697 24V APS Encoder Assembly — CSL24UL Service Part

The LiftMaster K76-34697 is a 24V APS encoder assembly identified in the CSL24UL slide-gate operator’s repair-parts documentation. It provides position feedback within the operator’s travel-control system and must be matched to the exact equipment configuration. This is a service component, not a replacement motor or complete control board. Keep the full part number visible when ordering: the similar K76-34697-3 is a separately identified 12V encoder-with-harness reference and should not be treated as the same item.

Compatibility — Models, Versions and Exclusions

Diagnose Position Feedback Before Replacing the Encoder

A travel-position fault can involve the encoder, its connection, wiring or the mechanism that drives it. Have the technician inspect the system and record the diagnostic information before choosing a part. An encoder replacement does not correct a binding gate, damaged drive component or an intermittent harness connection.

Compare the original assembly with the applicable repair drawing, including its mounting and connector arrangement. The CSL24UL documentation separately identifies the APS encoder and an APE assembly, so the name encoder by itself is not enough to define the kit needed. Ask the installer which complete part reference and supplied components are required for the diagnosed repair.

Specifications and Product Identification

Before Ordering

• Record the full operator model and the original encoder label.
• Verify K76-34697 in the correct service diagram.
• Check the harness, connectors and mechanical drive for damage or looseness.
• Confirm whether the repair needs the encoder assembly or a different documented kit and associated hardware.

Package Contents and Separate Requirements

This listing identifies the K76-34697 encoder assembly. Do not assume it includes a motor, complete limit system, main board or every harness shown nearby in the drawing. Confirm current kit contents with the supplier. Any required travel setup and testing remain part of installation; a replacement component should not be assumed to retain the old system’s learned operating positions.

Safety Warnings — Read Before Installation or Service

• WARNING: Incorrect position feedback can result in unexpected or incorrect gate movement. Replacement requires a qualified gate-systems technician.
• Disconnect and secure utility and battery power, and prevent gate movement before accessing the assembly.
• Never bypass feedback or safety inputs to keep a faulted operator running. Correct the fault before normal service.
• Follow the model-specific setup procedure and verify travel, reversal and every required protection device after the repair.

Related Products and Important Differences

• LMRRUL monitored photo eye — a separate external safety sensor for approved operator configurations; it does not provide encoder position feedback.
• LMWEKITU monitored wireless edge kit — a separate edge communication system; select and test it independently of the encoder repair.

Frequently Asked Questions

Is K76-34697 the 12V version?

No. Manufacturer documentation identifies it as the 24V APS encoder. K76-34697-3 is a distinct 12V encoder-with-harness reference.

Does an encoder fault always require this part?

No. Connections, wiring and the associated mechanism also require inspection before replacement is justified.

Is this the same package as K1A6408?

Do not assume so. The CSL24UL parts diagram lists the two references separately; match the repair scope to the correct kit.

Can I resume operation immediately after installing it?

Only after the prescribed setup and operating tests are completed, including travel and the required safety-device response.

Need Help Confirming the Right Product?

Contact Garage-DoorParts.com before ordering. Send the full equipment model, readable part labels and photographs of the installed assembly. Include the dimensions, electrical configuration or accessory details relevant to your project so the listing can be checked against the actual installation.