OEM Carrier Integrated Furnace Control Board HK42FZ034 for Model PG8MAA024045AFJA

This is the OEM factory-specified Integrated Furnace Control (IFC) Board — part number HK42FZ034 — for the Carrier PG8MAA024045AFJA gas furnace. The IFC board is the operational brain of your furnace: it sequences the inducer motor, hot surface igniter, gas valve, and blower motor in precise timing order during every call for heat. It simultaneously monitors pressure switches, limit switches, rollout switches, and the flame sensor to enforce safe operation. When the IFC board fails, symptoms typically include a furnace that won't ignite, one that locks out after one or two ignition attempts, random fault codes on the LED diagnostic indicator, or a blower that runs continuously or not at all — even when all other components test as functional.

• Part Number & Cross-References: OEM Carrier HK42FZ034 | Board references CEPL131012-01 & CEBD431012-01A | Direct plug-in factory replacement — no wiring modifications required
• OEM vs. Generic: This is the genuine Carrier factory board, not an aftermarket substitute. Generic IFC boards frequently operate outside factory timing tolerances, triggering nuisance lockouts, premature component wear, and voided equipment warranties. The OEM board preserves exact ignition timing and safety sequencing as designed.
• Install Difficulty: 3/5 — Requires shutting off power and gas before starting. Tools needed: 1/4" nut driver, flathead screwdriver, multimeter, and phone or camera to photograph all wiring harnesses before disconnection. Transfer connectors one-by-one to avoid miswiring. Confirm LED diagnostic codes via the furnace door label before and after replacement.
• Warranty & Shipping: Backed by Carrier's OEM factory warranty. In stock — ships same business day from our warehouse. Packed in original manufacturer packaging.

Compatibility: Designed as the exact OEM replacement for the Carrier PG8MAA024045AFJA gas furnace. Also cross-references Carrier Bryant and Payne furnace models using board numbers CEPL131012-01 and CEBD431012-01A. Always verify your existing board's part number against your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — reach out before you buy.