Genuine LiftMaster K41-0095-000 BLDC motor drive board — the board that drives the brushless DC motor in the HDSW24UL heavy-duty swing and HDSL24UL heavy-duty slide operators. It takes its power from the K41-0071-000 HD power board and its commands from the main control board.
Motor and drive board fail together more often than not. LiftMaster sells a K41-0097-000 kit with the K41-0082-000 HD motor, this drive board and the power board. If the motor has been overheating or stalling, replace the pair rather than the board alone.
Specifications
| Part number | K41-0095-000 |
|---|---|
| LiftMaster description | Motor Drive, HD Gates |
| Fits | HDSW24UL, HDSL24UL |
| Drives | K41-0082-000 BLDC HD motor |
| Condition | Genuine LiftMaster OEM, new |
The boards in the HD and industrial family
LiftMaster’s four heavy-duty DC operators share most of their electronics. The table below is taken from the repair-parts pages of the HDSW24UL, HDSL24UL and IHSL24UL/INSL24UL manuals; the part you are on is in bold.
| Operator | Control board | Power board | Motor drive | Relay adapter | Expansion | EMI board | Rectifier |
|---|---|---|---|---|---|---|---|
| HDSW24UL swing | K41-0073-000MC (board printed K41-0094-000) | K41-0071-000 | K41-0095-000 | K41-0072-000 | K1D8387-1CC | K1D7078 | K41-0083-000 |
| HDSL24UL slide | K41-0073-000MC | K41-0071-000 | K41-0095-000 | K41-0072-000 | K1D8387-1CC | K1D7078 | K41-0083-000 |
| IHSL24UL industrial slide | K41-0073-000MC | combined, below | K41-0245-000 (power + motor drive) | K41-0072-000 | K1D8387-1CC | K1D7078 | K41-0083-000 |
| INSL24UL industrial slide | K41-0073-000MC | combined, below | K41-0244-000 (power + motor drive) | K41-0072-000 | K1D8387-1CC | K1D7078 | K41-0083-000 |
Is the motor drive actually the problem?
| Symptom | Check first |
|---|---|
| Gate slows, stops partway, reverses on its own, or dies in a power cut | The batteries. These operators run off two 29-NP712 12V 7AH batteries (or the pre-wired pair K74-30762); replace both together |
| Main board lights and responds, motor does not run | This board, after checking the motor connections and the K41-0071-000 power board output |
| Motor runs rough, hums, or trips the force setting | The K41-0082-000 motor and the gear reducer first |
| Gate overruns or stops short | The encoder — K41-0092-000 APS on the HDSW24UL, K41-0051-000 APE on the HDSL24UL — not this board |
| Operator dead, no lights anywhere | Transformer, EMI board and rectifier, not this board |
| Burnt smell, scorching or a bulged capacitor on this board | This board — replace it |
After fitting
Photograph the harness connections before removing the old board and reconnect the new one the same way. Then set the limits and force, relearn every remote, re-enter timer, loop and accessory settings, and re-test every entrapment protection device to UL325 before returning the gate to service.
Fit surge protection at the same time. Storm damage is a leading cause of gate operator board failure. If this board died after a storm, the replacement is at the same risk unless the installation is protected.
Related
HDSW24UL parts · HDSL24UL parts · IHSL24UL parts · INSL24UL parts · safety equipment, sensors & loops
Not sure which board you need? Send a photo of your existing board to parts@gatehousesupplies.com or call 866-965-5599. We would rather confirm it than have you fit the wrong board.
