The LiftMaster K76-35664 RPM sensor module is a genuine replacement sensor module used on select LiftMaster perimeter access slide gate operator systems. It is commonly referenced for RSL12V repairs where the operator needs motor movement feedback restored.
A failed RPM sensor can cause symptoms that look like board, motor, or wiring problems, so diagnosis should be performed before replacement.
The RPM sensor module provides movement feedback to the control board so the operator can monitor motor operation, detect movement, and manage travel behavior.
Commonly referenced for select LiftMaster RSL12V slide gate operator applications and related perimeter access models where the parts diagram calls for K76-35664.
This is not a universal RPM sensor for every LiftMaster gate operator. Similar-looking sensors may use different connectors, mounting, wiring, or control-board logic. Confirm by parts diagram and original module before ordering.
| Specification | Details |
|---|---|
| Brand | LiftMaster |
| Part Number | K76-35664 |
| Store ID | LM-K76-35664 |
| Product Type | RPM sensor module |
| Common Application | RSL12V slide gate operator service |
| Function | Motor movement feedback |
| Compatibility Method | Match by operator model, connector, and parts diagram |
| Package Contents | RPM sensor module unless supplier packaging changes |
RPM sensor faults often show up after power, battery, harness, or mechanical problems. Fixing the feedback sensor will not solve a gate that is binding or a motor circuit that is not being powered correctly.
Disconnect power and batteries where applicable before servicing a DC gate operator. Reinstall the sensor and harness in the original routing so it cannot be damaged by moving parts.
Do not bypass photo eyes, gate edges, stop circuits, or entrapment protection while testing movement feedback.
If the operator continues to report movement faults after replacement, inspect the motor, board output, battery health, chain path, encoder wiring, and gate mechanics before replacing more parts.
It gives the operator control board motor movement feedback so a compatible slide gate operator can monitor movement and travel behavior.
It is commonly referenced for select RSL12V slide gate operator repairs, but the operator parts diagram should be checked before ordering.
No. Similar faults can come from wiring, batteries, motor problems, a dragging gate, control board failure, or safety input problems.
No. It is not universal. Confirm the exact operator model, connector, and original sensor before ordering.
Check gate movement, chain or belt condition, power, battery voltage, connector condition, and fault codes before replacing the sensor.
Do not bypass required control or safety functions. Use proper diagnostic procedures or have a qualified gate technician inspect the operator.