OEM Carrier Integrated Furnace Control Board HK42FZ081 for Model PG96VTAA66120DAA

This is the factory OEM integrated furnace control board (IFC) for the Carrier PG96VTAA66120DAA 96% AFUE variable-speed gas furnace. The control board is the brain of your furnace — it sequences the inducer motor, hot surface igniter, gas valve, and variable-speed blower motor, while continuously monitoring safety inputs from pressure switches, limit switches, and the flame sensor. When the IFC fails, symptoms range from a complete no-heat lockout and flashing fault codes to erratic blower behavior, failed ignition sequences, or a furnace that shuts down shortly after starting.

• OEM Part Number: HK42FZ081 (Carrier Integrated Furnace Control Board) | Replaces: HK42FZ066 | Superseded by: HK42FZ094 — confirm current cross-reference before ordering
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part, programmed with the exact ignition trial timing, blower delay profiles, and fault-code logic specified for the PG96VTAA66120DAA. Aftermarket boards (e.g., ICM282-series) may restore basic function but can alter blower ramp timing and void remaining equipment warranties.
• Install Difficulty: 4/5 — Control board replacement requires safely de-energizing the furnace at the disconnect and breaker, photographing all wiring harness connections before removal, and transferring the model ID plug from the original board. Tools needed: Flathead and Phillips screwdrivers, needle-nose pliers, smartphone (for wiring photo), multimeter. A licensed HVAC technician is strongly recommended.
• Warranty: 1-year OEM manufacturer warranty. In-stock units ship same business day from our warehouse.

Compatibility: Directly fits Carrier PG96VTAA66120DAA 96% AFUE packaged gas furnace. Always verify the part number printed on your existing board's label before ordering, as multiple HK42FZ-series revisions exist. If your board has been superseded, our team will confirm the correct current replacement for your serial range. Questions about fitment? Contact us — we verify compatibility before you order.