The LiftMaster K001D8396-1 is an OEM replacement power board for Logic 5 (L5) commercial door operators that run on single-phase 115/230 VAC. This assembly handles the incoming line power and interfaces with the L5 control logic to drive and protect the operator’s motor and connected circuits, restoring proper operation when a failed or damaged power board is the cause of faults, intermittent operation, or no-run conditions. It is intended for use in LiftMaster 1-phase L5-equipped commercial operators commonly found on sectional doors, rolling steel doors, and industrial jackshaft/hoist and trolley applications. Because L5 systems were produced in different voltage and phase configurations, this 1 PH, 115/230V version must match the operator’s nameplate specifications and parts list for correct compatibility.
Use this board as a direct replacement in applicable LiftMaster Logic 5 operators where the original power board is labeled for 1-phase 115/230V. Installation should be performed by a qualified technician following the operator’s service manual and wiring diagram, with power locked out before any work. After replacement, verify supply voltage selection (115 or 230 VAC as required by the operator), check all connections, and re-test safety devices and door travel/limits according to LiftMaster procedures. For best results, confirm fitment by model and serial number using the manufacturer’s parts breakdown for your specific LiftMaster commercial door operator. Common search terms: LiftMaster K001D8396-1 power board, L5 Logic 5 replacement part, 1-phase 115/230V commercial door operator board, OEM repair component.