OEM Carrier Integrated Furnace Control Board HK42FZ016 / 325878-751 for Model PG8DAA036095ABJA

This is the factory OEM integrated furnace control (IFC) board for the Carrier PG8DAA036095ABJA gas furnace. The IFC board is the brain of your heating system — it sequences every stage of operation, from inducer pre-purge and hot-surface ignition to gas valve actuation, blower motor ramp-up, and post-purge. When this board fails, symptoms include a complete no-heat lockout, furnace short-cycling after ignition, erratic blower behavior, or a solid/flashing fault LED with no response to thermostat calls. The current factory-authorized replacement is part number 325878-751 (Integrated Furnace Control Board Kit), which supersedes the original HK42FZ016 and ships with adapter harnesses for seamless plug-and-play installation on legacy wiring harnesses.

• Part Numbers: OEM HK42FZ016 (original) | 325878-751 (current superseding kit) | Cross-ref: CEPL130438-01, CEBD431012-01A, CEPL1311012-01, ICM282-series compatible
• OEM vs Generic: Genuine Carrier OEM boards are factory-calibrated to exact ignition timing, blower delay, and fault-detection tolerances for the PG8DAA036095ABJA. Third-party boards often use wider tolerances that can cause nuisance lockouts, accelerated inducer wear, or voided equipment warranties.
• Install Difficulty: 3/5 — Shut off gas and power at the disconnect before beginning. The 325878-751 kit includes wiring harness adapters. Photograph all terminal connections before removal. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always discharge static before handling the board.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PG8DAA036095ABJA single-stage gas furnace. Also fits Bryant and Payne models sharing the HK42FZ series board family — verify your data plate part number before ordering. Questions about fitment? Our HVAC parts specialists confirm compatibility before your order ships.