OEM Carrier Integrated Furnace Control Board Kit HK42FZ016 / 325878-751 for Model PG8UAA024045ACJA

This is the OEM Carrier Integrated Furnace Control Board Kit — part numbers HK42FZ016 and its factory-updated successor 325878-751 — the direct, factory-specified replacement for the Carrier PG8UAA024045ACJA packaged gas furnace. The integrated furnace control (IFC) board is the brain of your heating system: it sequences the inducer motor, hot surface igniter, gas valve, and blower motor through every call for heat. When it fails, the furnace may lockout after ignition attempts, run the inducer but never fire the burners, fail to energize the blower, or display a fault LED code indicating a control board error. Note: HK42FZ016 has been superseded by 325878-751, the current OEM kit which includes wiring adapter harnesses for seamless installation on both old- and new-style wiring harnesses.

• Specs: 24 VAC control circuit | Input range: 98–132 VAC at 60 Hz | Igniter output: 5A at 120 VAC | Cool blower: 30A, 2 HP, 240 VAC | Heat blower: 5A, 1/2 HP, 240 VAC | Inducer motor: 4A, 120 VAC | Microprocessor-based with diagnostic LED fault codes
• OEM vs Generic: This OEM board is factory-programmed with Carrier-specific ignition timing, blower delay profiles, and safety lockout sequences. Generic aftermarket boards (ICM282-series) omit Carrier's proprietary fault-code logic and may not honor factory warranty terms on connected components.
• Install difficulty: 3/5 — Shut off power at the breaker and gas supply before beginning. The 325878-751 kit includes adapter harnesses — photograph all wiring connections before disconnecting. Tools needed: #2 Phillips screwdriver, 1/4" nut driver, multimeter. Note the LED fault code before powering down to aid diagnosis. Recommend replacing with power fully disconnected to avoid electrostatic discharge damage.
• Warranty: 1-year OEM factory warranty against manufacturing defects. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Factory-specified replacement for Carrier model PG8UAA024045ACJA packaged gas furnace. The 325878-751 kit also cross-references Carrier/Bryant/Payne boards CEBD431012-01A, CEPL1311012-01, HK42FZ004, HK42FZ007, HK42FZ008, HK42FZ009, HK42FZ011, HK42FZ013, and HK42FZ034. Verify your existing board's part number against the unit data plate before ordering. Not sure it fits? Contact our team — we verify fitment before you buy.