OEM Carrier Integrated Furnace Control Board HK42FZ016 for Model PG8DAA060115ACJA

This is the genuine OEM Carrier Integrated Furnace Control Board (IFC), part number HK42FZ016 (also sold as kit 325878-751), factory-specified for the Carrier PG8DAA060115ACJA packaged gas/electric unit. The IFC board is the central brain of your furnace — it sequences the inducer motor, hot surface igniter, gas valve, and blower, while continuously monitoring safety inputs from the pressure switch, limit switch, and flame sensor. When it fails, common symptoms include a furnace that won't start, flashes a fault code and locks out, cycles on and off erratically, or fails to energize the blower after a successful ignition.

• Specs: Carrier OEM part HK42FZ016 | Kit cross-reference: 325878-751 | 24V control circuit | Integrated LED fault-code diagnostics | Compatible with single-stage gas valve and HSI ignition sequence
• OEM vs Generic: OEM IFC boards are factory-programmed with the exact timing delays, lockout thresholds, and fault logic required for the PG8DAA060115ACJA. Aftermarket boards often use generic firmware that can cause nuisance lockouts, incorrect blower delays, or void your equipment warranty.
• Install difficulty: 3/5 — Disconnect power at the breaker and verify zero voltage before handling. Tools needed: 1/4" nut driver, flat-head screwdriver, needle-nose pliers, phone or camera to photograph all wiring harness connections before removal. Transfer wires one-at-a-time to avoid miswiring. Reconnect power and verify LED fault code is clear before returning to service.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our stocked warehouse.

Compatibility: Engineered and factory-matched for the Carrier PG8DAA060115ACJA packaged gas/electric unit. Always verify your existing board's part number (printed on the board label) matches HK42FZ016 or 325878-751 before ordering. Not sure? Our HVAC parts specialists confirm fitment before you buy — reach out before placing your order.