OEM Carrier Integrated Furnace Control Board HK42FZ034 for Model PG8JAA036070AEJA

This is the OEM factory-specified Integrated Furnace Control (IFC) board for the Carrier PG8JAA036070AEJA gas furnace. The control board is the central brain of your furnace — it sequences every stage of operation including inducer startup, ignition, gas valve activation, and blower motor timing. When it fails, symptoms range from a complete no-heat lockout and random mid-cycle shutdowns to fault code LED flashes, an inducer that runs but never advances to ignition, or a blower that won't shut off after the call for heat ends. Before condemning the board, verify your flame sensor, pressure switches, and limit switches are functioning correctly — but when all other components check out and faults persist, the IFC board is the confirmed culprit.

• OEM Part Number: HK42FZ034 | Cross-references: CEPL131012-01, CEBD431012-01A | Factory Authorized Parts designation
• OEM vs Generic: This is a genuine Carrier Factory Authorized Parts board, manufactured to exact Carrier Corporation electrical and firmware specifications. Aftermarket boards often use off-tolerance components and lack model-specific fault logic, leading to misdiagnosis and callbacks.
• Install Difficulty: 3/5 — Disconnect power at the breaker and wait 5 minutes before beginning. Tools needed: ¼" nut driver, Phillips screwdriver, needle-nose pliers, smartphone (photograph all wiring harness connections before unplugging). Transfer connectors one at a time. Restore power and confirm LED fault code sequence on startup.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered as the direct OEM replacement for Carrier PG8JAA036070AEJA packaged gas furnace units. Also fits Bryant and Payne models sharing the CEPL131012-01 / CEBD431012-01A board designation — confirm your existing board's part number on the label before ordering. Questions about fitment? Our HVAC parts specialists verify compatibility before you purchase — contact us today and get your system back online fast.