Genuine LiftMaster K1D8284-1CC motor drive board — the single-phase power board in the SL585U / SL585UL and SL595U / SL595UL commercial slide gate operators. It sits beside the K1D6761-1CC logic board and drives the motor; the logic board tells it what to do.
Single phase or three phase? This board is for 1PH operators only. Three-phase and 575V builds take the K1D8424-1CC power board and need the matching K94-38062-x power board ID resistor. Check the motor plate before ordering.
Specifications
| Part number | K1D8284-1CC |
|---|---|
| LiftMaster description | Motor Drive Board, 1PH |
| Fits | SL585U, SL585UL and SL595U, SL595UL — single-phase builds |
| Works with | K1D6761-1CC logic board, K1D8387-1CC expansion board |
| Condition | Genuine LiftMaster OEM, new |
Is the power board actually the problem?
| Symptom | Check first |
|---|---|
| Logic board lights and responds, but the motor will not run | This board — the classic power board failure |
| Operator dead, no lights on either board | The transformer first: K21-3260-1, or K204A0276 on 575V |
| Motor runs but the gate does not move | Clutch or gear reducer, not a board |
| Erratic travel or missed counts | The K2A0878 encoder board on the SL585U; the RPM cup on the SL595U |
| Display shows the wrong operator type | The reset switch ID harness or the K94-38062-x power board resistor, not the board |
| Burnt smell, scorching or a bulged capacitor on this board | This board — replace it |
After fitting
Reconnect the motor leads exactly as they were — photograph them before removal. Then run the operator through its limits 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
SL585U parts · SL595U parts · K1D6761-1CC logic board
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.
