OEM Carrier Integrated Furnace Control Board HK42FZ016 for Model PG8DAA036070ACJA

This is the OEM-specified Integrated Furnace Control (IFC) board for the Carrier PG8DAA036070ACJA gas furnace, sold under Carrier part number HK42FZ016, superseded by kit number 325878-751. The IFC board is the brain of your furnace — it sequences the inducer motor, hot surface igniter, gas valve, and blower in precise timing. When it fails, symptoms range from a complete no-heat lockout and flashing LED fault codes to erratic blower behavior, ignition attempts with no flame, or a furnace that starts briefly then shuts down. Do not overlook the IFC board if all other components (flame sensor, igniter, pressure switch) have been ruled out.

• Specs: 24 VAC control circuit | Input: 98–132 VAC @ 60 Hz | Ignitor output: 5A @ 120 VAC | Blower: 30A / 2 HP / 240 VAC | Inducer: 4A FLA / 8.0 LRA @ 120 VAC | Heat relay: 5A / 1/2 HP / 240 VAC | Onboard diagnostic LED fault codes
• OEM vs Generic: This OEM board ships with factory-matched firmware and timing sequences for the PG8DAA036070ACJA. Generic ICM282-series boards are functionally compatible but may require jumper configuration and do not carry Carrier's factory warranty — generic pricing is available at checkout.
• Install difficulty: 3/5 — Power down and lock out the furnace before any work. Photograph all wiring harness connections before removal. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter. Note: the 325878-751 kit includes adapter harnesses for older wiring configurations — confirm your harness style before ordering.
• 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 PG8DAA036070ACJA single-stage gas furnace. Also cross-references Carrier/Bryant/Payne models using HK42FZ004, HK42FZ007, HK42FZ008, HK42FZ009, HK42FZ011, HK42FZ013, and HK42FZ034 boards. Verify your existing board's part number on the board label before ordering. Not sure? Our HVAC parts specialists confirm fitment at no charge — contact us before you buy.