LiftMaster K1D8424-1CC Three-Phase Power Board — SL585U / SL595U
LiftMaster K1D8424-1CC Three-Phase Power Board — SL585U / SL595U
The LiftMaster K1D8424-1CC is the three-phase power-board service reference shown in documented SL585U and SL595U commercial slide-gate operator parts lists. It belongs to the operator’s power circuitry and is distinct from the main control and expansion boards. Selecting this board requires the complete model, electrical configuration and installed board identification; a shared enclosure or similar connector does not establish fit. Use it for a diagnosed repair in an approved three-phase arrangement, with the incoming supply and connected components checked before replacement.
Compatibility — Models, Versions and Exclusions
| Model or selection point | Compatibility requirement |
|---|---|
| SL585U three-phase configurations | Verify the board in the applicable model and supply diagram. |
| SL595U three-phase configurations | Match the complete operator and installed power-board reference. |
| Single-phase arrangements | The documented K1D8284-1CC is a different service part. |
| Main or expansion board faults | Different components; this is not a replacement for either board. |
| Other SL585 / SL595 generations | A family name alone does not establish compatibility. |
Diagnose the Drive System and Preserve the Wiring Arrangement
A gate that will not move may have a failed supply, wiring fault, control issue, motor-drive problem or mechanical obstruction. Have the technician evaluate the power path before choosing a replacement board. Installing new electronics without correcting a damaged connection or a fault elsewhere in the drive can leave the original symptom unresolved.
Record the existing connections and board mounting before removal. Use the wiring diagram for the exact supply configuration, including any separately specified transformer arrangement. Restore the prescribed grounding, insulation and wire routing. A connector that fits physically is not proof of an approved connection, and a three-phase board must never be used as a reason to improvise changes to the incoming electrical service.
Specifications and Product Identification
| Specification | Details |
|---|---|
| Part number | K1D8424-1CC |
| Component | Three-phase power board |
| Documented families | SL585U / SL595U |
| Single-phase comparison | K1D8284-1CC; separate reference |
| Main-board comparison | K1D6761-1CC; separate component |
| Selection basis | Exact model, phase, voltage arrangement and revision |
Before Ordering
- Record the full model, supply configuration and existing board number.
- Confirm the three-phase board in the exact operator parts list.
- Have incoming power, connections and connected equipment diagnosed.
- Check whether other damaged components require separate replacement.
Package Contents and Separate Requirements
This offer identifies the three-phase power board. A motor, main control board, expansion board, transformer, wiring harness and complete electrical enclosure are not promised as included. Confirm the current service package for mounting or connection pieces. Components shown around the board in a wiring diagram remain separate unless the supplier expressly identifies a combined kit. This board does not convert a single-phase installation into an approved three-phase operator.
Safety Warnings — Read Before Installation or Service
- WARNING: The operator can contain hazardous electrical energy and move unexpectedly. Electrical connections and service require a qualified technician.
- Disconnect AC, solar and battery power as applicable before service; follow the manufacturer’s isolation procedure.
- Restore the specified connections and factory wire routing. Do not bypass monitored protection or improvise incompatible drive connections.
- Complete the prescribed operating checks and test travel, reversal and all required protection devices before normal use.
Related Products and Important Differences
- LMRRUL monitored photo eye — a separate protection option only where the exact operator and control revision approve it; not a universal legacy retrofit.
- LMWEKITU monitored wireless edge kit — a separate edge communication system for approved controls and resistive edges; not a replacement for this mechanical or electrical service part.
Frequently Asked Questions
Is this a phase converter?
No. It is a replacement power board for the documented three-phase arrangement.
Can I use the single-phase board instead?
No substitution is established; use the part specified for the actual operator configuration.
Does this replace the main control board?
No. The manufacturer identifies the power and main control boards separately.
Is a three-phase supply label enough to confirm fit?
No. Match the full model, voltage arrangement, installed board and service documentation.
Need Help Confirming the Right Product?
Contact Garage-DoorParts.com before ordering. Send the full equipment model, readable part labels and photographs of the installed assembly. Include the dimensions, electrical configuration or accessory details relevant to your project so the listing can be checked against the actual installation.
Details
Need Help With Compatibility?
Not sure if this is the correct part for your garage door, operator, gate system, or application? Contact Us before ordering — we’re happy to help.
Garage-DoorParts.com carries a large selection of residential and commercial parts, and many components can look similar while having important differences in dimensions, model numbers, voltage, mounting, or compatibility.
For the best assistance, please provide as much information as possible, including the manufacturer, model number, part number, door or operator type, dimensions, and clear photos of the existing part or equipment.
Our goal is to help you identify the correct product before you order and reduce the possibility of ordering an incompatible part.
Contact Us with your product questions and compatibility information, and we’ll do our best to point you in the right direction.
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We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.
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