LiftMaster K79-60142 Control Board — MSLDCBB / MSWDCBB
LiftMaster K79-60142 Control Board — MSLDCBB / MSWDCBB
The LiftMaster K79-60142 is the control-board service reference documented for the MSLDCBB Mega Slide and MSWDCBB Mega Swing operator families. It is a platform-specific replacement, not a universal board for every Mega-branded barrier or gate. Match the full operator model, installed board, required configuration and service instructions before ordering. A board repair should preserve the intended slide or swing operation and the complete protection system; it does not automatically upgrade older equipment to a different operator generation or add unsupported radio and accessory capabilities.
Compatibility — Models, Versions and Exclusions
| Model or selection point | Compatibility requirement |
|---|---|
| MSLDCBB | Manufacturer service information identifies this board; verify installed revision. |
| MSWDCBB | Documented board family; preserve the correct swing-operator configuration. |
| Other Mega products including barrier arms | No universal interchangeability established from the Mega name. |
| Firmware or chip revisions | Confirm current kit contents and required configuration rather than assuming identical software. |
| Existing radio and safety accessories | Verify separately against the actual board and operator documentation. |
Diagnose the System and Preserve the Correct Operator Configuration
An operator that fails to run may have a supply, battery, wiring, control-input or mechanical problem. Have a qualified technician evaluate the complete system before choosing a board. Record any diagnostics and inspect the connected devices so a replacement is not installed into an unresolved fault.
Photograph board labels, wiring and configuration settings before disassembly. The same service family can support different operator arrangements, so the installed model and required settings matter. Confirm any supplied firmware or replaceable chip with the current kit and manufacturer procedure. Do not assume the board includes a new radio, changes remote compatibility or certifies a complete modernization of the entrance.
Specifications and Product Identification
| Specification | Details |
|---|---|
| Part number | K79-60142 |
| Component | Control board |
| Documented families | MSLDCBB / MSWDCBB |
| Operator types | Mega Slide / Mega Swing |
| Selection requirement | Exact model, installed board and configuration |
| Separate systems | Motor, charging supply, radio and external protection |
Before Ordering
- Record the complete Mega Slide or Mega Swing model and board label.
- Inspect the power, battery, wiring and protection inputs during diagnosis.
- Document the configuration and all connected access devices.
- Confirm the current board revision, kit inventory and commissioning requirements.
Package Contents and Separate Requirements
This offer identifies the control board. A radio receiver, firmware chip supplied separately, battery, charger, motor, wiring harness and complete enclosure are not promised as included. Confirm the current service package and any model-specific configuration parts before purchase. A parts diagram showing nearby electronics does not mean every component is included in a board-only repair order.
Safety Warnings — Read Before Installation or Service
- WARNING: A control-board repair can change gate movement and protection behavior. Use a qualified gate-systems technician and secure the gate before service.
- Disconnect all applicable sources, including the battery and any AC or solar charging supply, according to the model-specific procedure.
- Do not bypass a protection input to make the replacement operate. Preserve the documented wiring and use only approved accessories for the actual controller.
- Recheck travel, reversal, access commands and every required protection device before allowing normal traffic through the entrance.
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
Will this fit a Mega Arm barrier operator?
No universal Mega-family fit is established. Use the exact operator’s approved board reference.
Does it include a new radio receiver?
A separate radio is not promised; verify the current kit and existing radio compatibility.
Can I ignore the original board settings?
No. Record the configuration and follow the manufacturer’s commissioning procedure for the actual operator.
Will it fix weak batteries or a binding gate?
No. Power and mechanical faults need separate diagnosis and correction.
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.
Shipping & Returns
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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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