OEM Carrier Integrated Furnace Control Board HK42FZ034 for Model PG8MAA066110AFJA

This is the OEM factory-specified Integrated Furnace Control (IFC) board for the Carrier PG8MAA066110AFJA gas furnace. The control board is the brain of your heating system — it sequences every stage of the ignition cycle, monitors all safety switches and sensors, and distributes 24V control signals to the gas valve, inducer motor, blower motor, and igniter. When the board fails, symptoms typically include the furnace going into hard lockout after an ignition attempt, random mid-cycle shutdowns, a continuously flashing fault LED with no actionable error, or a furnace that simply does nothing when the thermostat calls for heat.

• OEM Part Number: HK42FZ034 | Board references: CEPL131012-01 / CEBD431012-01A | Factory-direct Carrier replacement for model PG8MAA066110AFJA
• OEM vs Generic: The OEM board ships pre-programmed with Carrier's exact timing and fault-detection logic. Aftermarket boards frequently use looser component tolerances and generic firmware, which can cause nuisance lockouts, premature flame sensor faults, or blower-off-delay mismatches that void equipment warranties.
• Install Difficulty: 3/5 — Shut off gas and 120V power before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter, and a phone or camera to photograph all wiring connections before removal. Transfer wires one-at-a-time to the new board to avoid miswiring. Reconnect the flame sensor and pressure switch leads last, then restore power and confirm normal ignition sequence.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed and factory-specified for the Carrier PG8MAA066110AFJA packaged gas furnace. Cross-references include CEPL131012-01 and CEBD431012-01A. Always verify your existing board's part number against HK42FZ034 before ordering. Need fitment confirmation? Our HVAC parts team verifies compatibility before you buy — order with confidence.