OEM Carrier Integrated Furnace Control Board HK42FZ016 for Model PG9MAA060080ADKA

This is the factory OEM Integrated Furnace Control (IFC) board for the Carrier PG9MAA060080ADKA gas furnace, supplied under primary part number HK42FZ016 and updated kit part number 325878-751. The IFC board is the brain of your furnace — it sequences the inducer motor, hot surface igniter, gas valve, and blower on every single call for heat. When it fails, symptoms range from a complete no-heat lockout and continuous fault-code LED flashing, to erratic ignition attempts, blower running non-stop, or the furnace failing to advance past the inducer pre-purge stage. Do not overlook the IFC board when other components — igniter, flame sensor, and pressure switches — have already been verified good.

• OEM Part Numbers: HK42FZ016 (original IFC board) | 325878-751 (current OEM conversion kit with adapter harnesses for legacy wiring)
• OEM vs Generic: The factory OEM board ships with Carrier's exact firmware, fault-code timing, and terminal layout. Third-party aftermarket boards frequently use imprecise timing delays for inducer pre-purge and blower-off delay, leading to premature heat exchanger stress and voided equipment warranties.
• Install Difficulty: 3/5 — Shut off power at the disconnect and gas supply before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, smartphone (photograph all wiring before disconnecting). The 325878-751 kit includes adapter harnesses to simplify connection on older wiring configurations — follow the enclosed instruction sheet carefully.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PG9MAA060080ADKA gas furnace. The 325878-751 kit supersedes HK42FZ016 and also replaces HK42FZ004, HK42FZ007, HK42FZ008, HK42FZ009, and HK42FZ011 on applicable models — always verify your unit's data plate part number before ordering. Questions? Our HVAC parts specialists confirm fitment before your order ships.