The LiftMaster K23-19380 reset switch is a small but important control component used in select LiftMaster swing gate operator assemblies. It gives the operator a serviceable reset point after certain faults, interruptions, or control events. On LA400 and LA412 style gate operators, a damaged or failed reset switch can create problems that look like control-board or power issues, especially if the switch is physically broken, corroded, or not making reliable contact. This part should be selected by the exact part number and switch configuration because other LiftMaster reset switches may look similar but fit different operators, use different mounting hardware, or connect differently in the control circuit.
| Manufacturer | LiftMaster |
|---|---|
| Product Type | Reset Switch |
| Part Number | K23-19380 |
| Application | Swing gate operator reset/control circuit |
| Compatible Operator Type | Select LiftMaster swing gate operators |
| Common Model References | LA400, LA412 |
| Notes | Verify switch mounting and wiring before ordering |
Verified and commonly associated with LiftMaster LA400 and LA412 swing gate operator applications. May be used with select legacy LiftMaster / Elite swing gate motor assemblies where the parts diagram specifies K23-19380.
K23-19380, LM-K23-19380, CB-2 K23-19380, reset switch LA400, reset switch LA412. Different reset switch families include K23-34815 and K23-34815-1 for SL-series slide gate operators.
Do not confuse this LA-series reset switch with reset switches used on SL575, SL585, or SL595 slide gate operators.
If a reset switch repeatedly trips or the gate will not reset, do not bypass safety or control circuits. Diagnose the underlying fault.
Electrical parts should be installed with power disconnected and the operator secured against movement. For line-voltage wiring, transformer replacement, switch wiring, or unsafe gate movement, use a qualified gate technician.
K23-19380 is commonly associated with LiftMaster LA400 and LA412 swing gate operators.
No. SL-series slide gate operators commonly use different reset switch part numbers.
A damaged reset switch may prevent proper reset operation, cause intermittent control problems, or make a fault condition harder to clear.
No. The reset/control circuit should not be bypassed. Diagnose and replace the correct part instead.
Compare the original part number, switch style, mounting method, wiring, and operator parts diagram.