OEM Carrier Integrated Furnace Control Board HK42FZ081 for Model PG96VTAA48080BAA

The Carrier HK42FZ081 Integrated Furnace Control (IFC) Board is the factory-specified replacement for the PG96VTAA48080BAA 96% AFUE variable-speed gas furnace. This board is the brain of your heating system — it sequences every stage of the ignition cycle, manages blower motor timing, monitors safety inputs, and communicates fault codes via LED diagnostics. Common failure symptoms include a furnace that won't ignite, goes into hard lockout, short-cycles after startup, or displays a continuous fault code with no heat output. A failed control board can mimic symptoms of other failed components, making OEM replacement the fastest path to confirmed diagnosis and reliable repair.

• Specs: Carrier OEM Part # HK42FZ081 | Also cross-references: CEPL131102-21-R-I, CEBD431102-05-RA | Board dimensions approx. 7" × 8" | 24V control circuit | Manages gas valve, HSI igniter, inducer motor, blower motor, humidifier, and electronic air cleaner outputs
• OEM vs Generic: OEM boards are programmed with Carrier's exact ignition trial timing, blower delay profiles, and fault-code logic for the PG96VTAA48080BAA. Aftermarket boards may use generic timing curves that reduce efficiency, trigger nuisance lockouts, or void your furnace's remaining warranty.
• Install difficulty: 3/5 — Turn off power and gas before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone or camera to photograph all wiring harness connections before removal. Note: transfer the model plug from your existing board to the new board — it is not included. Label all connectors before disconnecting.
• Warranty: 1-year OEM factory warranty against manufacturing defects. In-stock orders ship same business day from our warehouse.

Compatibility: Designed for the Carrier PG96VTAA48080BAA 96% AFUE packaged gas furnace. Note that HK42FZ081 has been superseded by Carrier part HK42FZ094 — both are eligible OEM replacements for this model. Always verify your unit's data plate and existing board part number before ordering. Our HVAC parts specialists are available to confirm fitment prior to purchase — no guesswork required. Order now and your part ships today.