The LiftMaster K23-2017 limit switch is a service replacement component used to help control gate or barrier travel position. In a gate operator, the limit switch is part of the system that tells the control circuit when the equipment has reached its open or close stopping point. A worn or damaged switch can create travel problems even when the motor, gearbox, and control board are still working.
This part is often listed for select LiftMaster swing and barrier gate operators, and it may also be searched alongside similar LiftMaster limit switch numbers used in slide and swing gate applications. Since limit switches can vary by lever style, terminal position, mounting hole spacing, and operator generation, match the old switch and confirm the part number in the manual before installation.
Used with select LiftMaster swing and barrier gate operators. Some references group nearby numbers with swing and slide gate limit switches, so part-number verification is important.
| Manufacturer | LiftMaster |
|---|---|
| Product Type | Limit switch |
| Part Number | K23-2017 |
| Application | Gate or barrier travel limit control |
| Compatible Operator Type | Select swing and barrier gate operators |
| Related Part Style | Mechanical limit switch |
| Notes | Verify actuator style, terminal orientation, mounting, and operator parts diagram |
A limit switch failure can look like a board issue if the switch never opens or closes electrically. Always check the switch action, wiring, and mechanical adjustment after replacement.
Do not bypass limit switches to keep an operator running. Limit circuits are part of proper travel control and should be repaired correctly by a qualified gate technician when diagnosis is uncertain.
It is used to signal the open or close travel position on select LiftMaster swing and barrier gate operators.
No confirmed one-for-one interchange should be assumed. K23-2016 is a related similar LiftMaster limit switch, but the operator manual should confirm the correct number.
The operator may stop in the wrong place, overtravel, fail to complete a cycle, or show inconsistent open and close limits.
Usually yes. After replacing a limit switch, the limit position and switch actuation should be checked and adjusted using the operator manual.
If ignored, incorrect limit operation can cause mechanical stress, overtravel, gate binding, or extra wear on drive components.