OEM Carrier Integrated Furnace Control Board HK42FZ016 for Model PG9MAA048060ACKA

This OEM Integrated Furnace Control (IFC) board is the factory-specified replacement for the Carrier PG9MAA048060ACKA packaged gas furnace unit. The control board is the brain of the furnace — it sequences the inducer motor, hot surface igniter, gas valve, and blower fan in precise timing. It also monitors safety inputs from the pressure switch, limit switches, and flame sensor. When this board fails, symptoms can include a furnace that won't light, a unit stuck in lockout mode, fault codes flashing on the LED diagnostic indicator, erratic blower behavior, or a completely unresponsive system with no call-for-heat response.

• OEM Part Numbers: HK42FZ016 (Integrated Furnace Control Board) | 325878-751 (Integrated Furnace Control Board Kit) — both are factory-genuine Carrier components for the PG9MAA048060ACKA
• OEM vs Generic: OEM control boards are programmed with Carrier's exact ignition timing, blower delay curves, and fault-code logic. Aftermarket boards may use approximate timing values that shorten equipment life, trigger nuisance lockouts, or void manufacturer warranties.
• Install Difficulty: 3/5 — Requires shutting off power and gas supply before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, smartphone (photograph all wiring harness connections before disconnecting). Reconnect all plugs in the same orientation. Restore power and verify LED status codes after installation.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Directly fits Carrier model PG9MAA048060ACKA packaged gas furnace. Cross-references OEM part numbers HK42FZ016 and 325878-751. Always confirm your existing board's part number on the label before ordering. Our fitment specialists are available to verify compatibility before you purchase — no guesswork required.