OEM Carrier Integrated Furnace Control Board HK42FZ034 for Model PG8JAA066110AEJA

The Carrier HK42FZ034 Integrated Furnace Control (IFC) Board is the factory-specified replacement for the PG8JAA066110AEJA gas furnace. This board is the operational brain of your furnace — it sequences the inducer motor, hot surface igniter, gas valve, and blower fan while continuously monitoring pressure switches, limit switches, and flame sensors. When the IFC board fails, symptoms range from complete no-heat lockouts and random mid-cycle shutdowns to erratic blower behavior, repeated ignition failures, and fault codes that other components cannot explain. If all individual components test good but the furnace still misbehaves, the control board is the next logical replacement.

• OEM Part Number: HK42FZ034 | Board references: CEPL131012-01 & CEBD431012-01A | Factory Authorized Carrier part meeting exact Carrier Corporation specifications
• OEM vs Generic: This is a genuine OEM board — not an aftermarket copy. OEM boards carry factory-validated firmware, precise voltage tolerances, and full connector compatibility. Aftermarket boards are known to cause intermittent fan shutdowns and shortened system life.
• Install Difficulty: 3/5 — Power down and lock out the furnace at the breaker before starting. Photograph all wiring harness connections before removal. Tools needed: Phillips-head and flat-head screwdrivers, needle-nose pliers, multimeter for post-install verification. Transfer wiring connectors one at a time to avoid mis-wiring. Confirm all fault codes are cleared on first power-up.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse in original manufacturer packaging.

Compatibility: Engineered as the direct OEM replacement for Carrier model PG8JAA066110AEJA and cross-compatible with select Bryant and Payne furnaces sharing the CEPL131012-01 / CEBD431012-01A board designation. Always verify your existing board's part number against HK42FZ034 before ordering. Our fitment team is available to confirm compatibility — contact us before you buy if you have any questions. Order today and your part ships the same business day.