Elite / LiftMaster K23-50099 Q029 Limit Switch for SL3000, CSW200, RoboSlide and RoboSwing Gate Operators
The Elite / LiftMaster K23-50099 is a replacement limit switch used in select gate operators to signal gate travel position. Limit switches are small parts, but they are critical to proper operation because they tell the control system when the gate has reached its programmed or mechanical open and close endpoints. A worn, broken, or misadjusted limit switch can cause over-travel, short travel, failure to stop, or repeated operator faults.
This part is commonly tied to older Elite gate operator platforms and appears in search paths as Q029, Q329, and Q392. The same switch number may be used in more than one operator family, but brackets, wiring, and switch quantity can vary. For that reason, match the parts diagram and the old switch assembly before ordering.
Compatible With / Common Applications
Commonly listed for the following Elite / LiftMaster gate operator applications when the diagram calls for K23-50099 or Q029:
- Elite SL3000 slide gate operators
- Elite CSW200 swing gate operators
- Elite RoboSlide operators
- Elite RoboSwing operators
- Elite Hercules overhead unit references
- Select LiftMaster residential and commercial gate operators using the Q029 / K23-50099 switch path
- Applications requiring Q029, Q329, or Q392 limit switch references
Features and Specifications
| Feature / Specification | Details |
|---|
| Manufacturer | LiftMaster / Elite |
| Product Type | Limit switch replacement |
| Part Number | K23-50099 |
| Common Elite Reference | Q029 |
| Switch Function | Open/close travel limit signaling |
| Application | Select residential and commercial gate operators |
| Compatible Operator Type | Slide, swing, and overhead gate operator applications by diagram |
| Contact Style | Single-pole style reference appears in some listings |
| Notes | Source title may reference two switches; verify kit quantity and application |
Also Known As / Related Part Numbers
- K23-50099
- Q029
- Q329
- Q392
- Elite Q029 limit switch
- LiftMaster K23-50099 limit switch
- SL3000 limit switch
- CSW200 limit switch
- RoboSlide limit switch
- RoboSwing limit switch
Technician Note
If a gate is overrunning limits, check switch actuation, limit nuts/cams, wiring, and mechanical adjustment before replacing parts. A good switch will not correct a stripped limit assembly or misadjusted cam.
Before Ordering Checklist
- Confirm the operator is SL3000, CSW200, RoboSlide, RoboSwing, Hercules, or another matching diagram application
- Compare old switch markings to K23-50099, Q029, Q329, or Q392
- Verify whether one switch or two switches are required
- Check actuator arm/lever style, bracket orientation, and wiring terminals
- Reset and test open and close limits after replacement
Professional Advisory
Gate limit adjustment should be done carefully with the gate area clear. If the gate overruns, binds, or moves unpredictably, stop service and have a qualified gate technician inspect it.
Product Questions and Answers
What does the K23-50099 limit switch do?
It signals the operator when the gate reaches a travel limit so the control system can stop movement at the correct position.
Is K23-50099 the same as Q029?
Q029 is a common Elite related reference for the K23-50099 limit switch path.
Which Elite operators commonly use this switch?
It is commonly listed for Elite SL3000, CSW200, RoboSlide, RoboSwing, and Hercules overhead unit references.
Does this listing include one switch or two?
Some titles reference two switches, but kit quantity should be verified against the listing and operator diagram before ordering.
Can a bad limit switch make the gate overtravel?
Yes, but overtravel can also be caused by limit adjustment, wiring, cams, limit nuts, or control-board problems.
