LiftMaster K79-13493-2 FDCL Logic Board Replacement Kit — Verify 06-FDCL-500 Charge Circuit

The LiftMaster K79-13493-2 is the FDCL logic-board replacement kit described in the dedicated manufacturer instruction sheet. Its application requirements specify an FDCL operator with a charge circuit board incorporating firmware version 06-FDCL-500. Confirm that exact requirement and the complete operator electrical configuration before ordering. This is not a universal replacement across similarly numbered FDC, FDCL or FDO fire-door control boards. Select the replacement by the complete part number and the installed equipment configuration. A similar photograph or a shared LiftMaster brand name does not establish interchangeability. Confirm the applicable service drawing before ordering so the repair addresses the correct component and its related mounting, connection and operating requirements.

Compatibility — Models, Versions and Exclusions

Identify the Assembly and Plan the Repair

The charge-board firmware condition is a purchasing requirement, not a general label that can be ignored when boards look alike. Record the installed board numbers, operator nameplate and readable firmware markings. Have the fire-door service provider confirm the current replacement recommendation and whether any separate updates or components are required.

The instruction sheet requires isolation of both AC supply and the battery connection and provides different wiring arrangements by phase. Keep the required release, supervision and control functions intact. After replacement, qualified personnel must restore the documented settings and complete the applicable fire-door and operator tests; power-up alone does not establish a completed fire-door repair.

An electrical symptom does not identify the failed component by itself. Have qualified service personnel inspect the supply, wiring, connections and equipment condition before replacing parts. Record existing labels and terminal references with power safely isolated. A replacement should restore the documented circuit arrangement; it should not be used to change operating voltage, defeat a protective function or compensate for a mechanical load that the equipment cannot safely move.

Specifications and Product Identification

Before Ordering

• Identify the complete FDCL operator and electrical configuration.
• Verify the required charge-board firmware reference.
• Compare the exact board service suffix and current kit.
• Plan AC/battery isolation and prescribed fire-door functional testing.

Package Contents and Separate Requirements

This offer identifies the logic-board replacement kit. Confirm the currently supplied board and service pieces. A charge circuit board, battery, complete operator, release mechanism and field wiring are not established as included; the dedicated application requirement does not mean the charge board ships with this kit.

Safety Warnings — Read Before Installation or Service

• WARNING: Electrical service can expose hazardous voltage and moving equipment. Use qualified service personnel and electrical personnel where required.
• Disconnect every applicable mains, battery and auxiliary supply before work. Follow the equipment instructions for stored energy and safe isolation.
• Fire-door service must preserve the required release, closing and supervision functions. Never bridge control or protection circuits to conceal a fault; use qualified fire-door service personnel and the prescribed system tests.
• Restore covers and wiring protection, then complete the model-specific functional and safety checks before returning the installation to normal use.

Related Products and Important Differences

• CPS-U monitored photo eyes — separate protection devices for approved commercial-door controls; match the operator and environment.
• TDC12X1BMC MAXUM trolley operator — a complete-operator comparison, not evidence that this legacy service part fits MAXUM.

Frequently Asked Questions

Is 06-FDCL-500 a stated application requirement?

Yes. The dedicated instruction sheet specifies that charge-circuit firmware for the documented replacement.

Does the kit include the charge board?

That is not established. A required existing component is not automatically part of the replacement package.

Will it fit any similarly numbered fire-door board?

No. Match the full FDCL application, firmware requirement, phase and exact service reference.

Is a successful power-up enough?

No. Qualified personnel must restore settings and verify the required release, supervision and door functions under the applicable service procedure.

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.