OEM Carrier Integrated Furnace Control Board HK42FZ016 / 325878-751 for Model PG9MAA048060ABKA

This OEM Integrated Furnace Control (IFC) board is the factory-specified replacement for the Carrier PG9MAA048060ABKA single-stage gas furnace. Originally supplied as HK42FZ016 and superseded by the current kit number 325878-751, this board is the brain of your furnace — orchestrating the entire heating sequence from inducer startup and hot surface ignition through gas valve activation, blower operation, and safety shutoff. When the IFC board fails, symptoms typically include a furnace that attempts ignition then locks out, a blower that runs continuously or not at all, or a unit with no response whatsoever at the thermostat call for heat.

• Specs: 24 VAC control circuit | Input range: 98–132 VAC at 60 Hz | Igniter output: 5A at 120 VAC | Cool blower: 30A, 2 HP, 240 VAC | Heat blower: 5A, 1/2 HP, 240 VAC | Inducer motor: 4A at 120 VAC | Includes wiring adapter harnesses for legacy board retrofits
• OEM vs Generic: The OEM 325878-751 kit ships with factory-matched adapter harnesses and is pre-loaded with Carrier-certified firmware. Aftermarket ICM282-series boards may lack proper diagnostic LED flash codes or cause nuisance lockouts due to timing deviations — always use OEM on furnaces under service agreements or warranties.
• Install difficulty: 3/5 — Power off and verify 0 VAC at board terminals before touching any wiring. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring harness connections before removal. The 325878-751 kit includes adapter harnesses if replacing the older HK42FZ016-style board with the large black enclosure cover.
• Warranty: 1-year OEM factory warranty against manufacturing defects. Ships same business day from our warehouse via tracked carrier.

Compatibility: Designed for the Carrier PG9MAA048060ABKA single-stage gas furnace. OEM part number HK42FZ016 is the original board; 325878-751 is the current factory-authorized replacement kit and is fully backward-compatible. Also fits select Bryant and Payne models sharing the same IFC platform — verify your existing part number against HK42FZ016 or 325878-751 before ordering. Questions about fitment? Our HVAC parts team verifies compatibility before you buy — in stock and ready to ship today.