OEM Carrier Integrated Furnace Control Board HK42FZ016 for Model PG9MAA036080ADKA

This is the factory OEM Integrated Furnace Control (IFC) board for the Carrier PG9MAA036080ADKA gas furnace, sold under OEM part numbers HK42FZ016 and its updated kit designation 325878-751. The IFC board is the brain of your furnace — it sequences the inducer motor, hot surface igniter, gas valve, and blower motor on every call for heat. When this board fails, symptoms include a furnace that won't fire at all, a system that locks out after one or two ignition attempts, erratic blower behavior, or a unit that runs but immediately shuts down. Fault LED blink codes on the board itself are your fastest diagnostic tool before condemning it.

• Specs: 24 VAC control circuit | Line voltage range: 98–132 VAC @ 60 Hz | Ignitor output: 5A @ 120 VAC | Cool blower: 30A, 2 HP, 240 VAC | Heat blower: 5A, 1/2 HP, 240 VAC | Inducer motor: 4A FLA / 8.0 LRA @ 120 VAC | Microprocessor-based with diagnostic LED blink codes
• OEM vs Generic: OEM boards are factory-programmed with exact timing sequences, safety lockout thresholds, and blower delay profiles specific to the PG9MAA036080ADKA. Generic aftermarket boards (ICM282-series) may run the furnace but can alter blower-off delays and ignition retry counts, potentially voiding your equipment warranty and masking underlying issues.
• Install difficulty: 3/5 — Power down and lock out the furnace at the disconnect before starting. Photograph all wiring harness connections before removal. Tools needed: 1/4" nut driver, needle-nose pliers, and a phone camera. The 325878-751 kit variant includes wiring adapter harnesses for legacy installations. Always re-attach the diagnostic fault code label inside the door after install.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Directly fits Carrier model PG9MAA036080ADKA single-stage gas furnace. Part number HK42FZ016 is the original board; 325878-751 is the current OEM kit replacement and includes plug adapter harnesses for drop-in compatibility. Verify your existing board's part number on the board label before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — contact us today and ship the same day.