OEM Carrier Integrated Furnace Control Board HK42FZ016 / 325878-751 for Model PG8DAA048095AAJA

This OEM integrated furnace control (IFC) board is the factory-specified replacement for the Carrier PG8DAA048095AAJA gas furnace. The IFC board is the brain of your heating system — it sequences the inducer motor, hot surface igniter, gas valve, and blower motor on every call for heat. When it fails, symptoms range from hard lockout with a flashing LED fault code, to intermittent no-heat calls, random blower operation, or a furnace that starts the inducer but never attempts ignition. Note: OEM part number HK42FZ016 has been superseded by the updated kit 325878-751, which includes wiring adapter harnesses for plug-and-play installation on both older and newer board configurations.

• Specs: Input voltage 98–132 VAC @ 60 Hz | Igniter output: 5A @ 120 VAC | Cool blower: 30A, 2 HP, 240 VAC | Heat blower: 5A, 1/2 HP, 240 VAC | Inducer motor: 4A @ 120 VAC | Gas valve: 24 VAC | Compatible with standard 24 VAC thermostat
• OEM vs Generic: This is a genuine Carrier OEM board factory-programmed for exact blower timing, ignition trial sequences, and lockout logic specific to your PG8DAA048095AAJA. Generic aftermarket boards (ICM282A/B series) use approximate timing tables and lack the OEM diagnostic code labeling — acceptable for budget repairs, but OEM is always the recommended spec for warranty and reliability.
• Install difficulty: 3/5 — Power down and tag out the furnace at the breaker before opening the cabinet. The 325878-751 kit includes adapter harnesses for legacy wiring configurations; photograph all connector positions before unplugging. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone camera. Discharge any static before handling the board. Fault code label included — must be affixed inside the furnace cabinet.
• Warranty: 1-year OEM manufacturer warranty on defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for Carrier model PG8DAA048095AAJA single-stage gas furnace. Also cross-references Carrier/Bryant/Payne models using OEM part numbers HK42FZ004, HK42FZ007, HK42FZ008, HK42FZ009, HK42FZ011, HK42FZ013, HK42FZ016, HK42FZ034, CEBD431012-01A, and CEPL1311012-01. Verify your existing board's part number on the label before ordering. Questions about fitment? Our HVAC parts team confirms compatibility before you buy — ships today.