OEM Carrier Integrated Furnace Control Board HK42FZ034 for Model PG8JAA024070AFJA

This OEM integrated furnace control board (IFC) is the factory-specified replacement for the Carrier PG8JAA024070AFJA gas furnace. The control board is the brain of your heating system — it sequences every stage of the ignition cycle, monitors safety switches and sensors, manages inducer and blower motor timing, and protects the heat exchanger from overheating. When the IFC fails, symptoms range from a complete no-heat condition and repeated lockout fault codes to erratic ignition attempts, a furnace that starts and immediately shuts down, or a blower that runs continuously or not at all. Burned traces, a blown onboard fuse, or a failed triac are the most common failure modes visible on inspection.

• OEM Part Number: HK42FZ034 | Also referenced as CEPL131012-01 & CEBD431012-01A | Factory Authorized Carrier replacement — meets exact OEM specifications
• OEM vs Generic: OEM boards are manufactured to Carrier's exact electrical tolerances and firmware logic. Aftermarket boards often omit secondary safety lockout routines and can exhibit nuisance faults or improper blower-off delays, risking heat exchanger damage over time.
• Install Difficulty: 3/5 — Requires shutting off gas and 120V power before beginning. Photograph all wiring harness connections before removal. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (verify 24V control circuit intact post-install). Always check and replace the onboard 3A fuse if the prior board failed due to a short.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse — get your heat back fast.

Compatibility: Direct OEM replacement for Carrier PG8JAA024070AFJA gas furnace. Cross-references CEPL131012-01, CEBD431012-01A, and CEPL130438-01. Also fits select Bryant and Payne models sharing this IFC platform — verify your model's data plate and existing part number before ordering. Questions about fitment? Our HVAC parts specialists confirm compatibility before you buy.