OEM Carrier Integrated Furnace Control Board HK42FZ034 for Model PG8MAA036070AEJA

This is the OEM Integrated Furnace Control (IFC) board — part number HK42FZ034 — factory-specified for the Carrier PG8MAA036070AEJA gas furnace. The IFC board is the operational brain of your furnace: it sequences the inducer motor, hot surface igniter, gas valve, and blower in precise timed stages. It also continuously monitors pressure switches, limit switches, and the flame sensor. A failed board typically presents as a no-heat condition, persistent fault lockouts, random mid-cycle shutdowns, or a furnace that simply will not respond to the thermostat call for heat. Inspect the board for burnt traces, shorted components, or blown fuse before condemning it, but when all other components check out, this board is the confirmed fix.

• OEM Part Number: HK42FZ034 | Cross-references: CEPL131012-01, CEBD431012-01A, CEBD431012-02A | Factory Authorized Parts — meets exact Carrier Corporation specifications
• OEM vs Generic: This is the genuine Carrier factory board, not an aftermarket substitute. OEM boards carry correct firmware timing, accurate fault-code LED sequencing, and factory-tested relay ratings — aftermarket boards are known to cause fan cycling errors and premature lockouts.
• Install Difficulty: 3/5 — Disconnect power and gas before starting. Tools needed: 1/4" nut driver, flat-head screwdriver, needle-nose pliers, phone/camera for wiring photo. Transfer low-voltage wires one at a time using your reference photo. Restore power and verify LED status codes.
• Warranty: 1-year OEM factory warranty against manufacturing defects. In-stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier PG8MAA036070AEJA gas furnaces. Also fits a wide range of Carrier, Bryant, and Payne furnace models that specify board CEPL131012-01 or CEBD431012-01A — verify your existing board's part number before ordering. Our fitment team is available to confirm compatibility before you buy.