OEM Carrier Integrated Furnace Control Board HK42FZ016 / 325878-751 for Model PG8DAA036050ABJA

This is the factory-specified OEM integrated furnace control board (IFC) for the Carrier PG8DAA036050ABJA single-stage gas furnace. The IFC orchestrates every function of your heating system — sequencing the inducer motor, hot surface igniter, gas valve, and blower motor through each heating cycle. When this board fails, symptoms include a complete no-heat condition, repeated ignition lockout, blower running continuously, erratic LED fault codes, or the furnace failing to progress past the inducer pre-purge stage.

• OEM Part Numbers: HK42FZ016 (original) | 325878-751 (current OEM kit replacement, includes wiring adapter harnesses for legacy installs) | Also cross-references: CEBD431012-01A, CEPL1311012-01, ICM282, 1012-940-M
• Electrical Specs: Input voltage range: 98–132 VAC @ 60 Hz | Ignitor output: 5A @ 120 VAC | Cool blower: 30A, 2 HP, 240 VAC | Heat blower: 5A, 1/2 HP, 240 VAC | Inducer motor: 4A, FLA-8.0 LRA @ 120 VAC | Gas valve: 24 VAC | Humidifier: 0.5A @ 24 VAC
• OEM vs Generic: The OEM board ships with factory-programmed microprocessor logic, exact LED diagnostic fault codes, and certified ignition timing sequences. Generic aftermarket boards vary in firmware revision and have been reported to cause nuisance lockouts. For a safety-critical component controlling gas valve operation, OEM is the recommended choice.
• Install Difficulty: 3/5 — Discharge any capacitors and confirm 120V power is OFF at the disconnect before proceeding. The 325878-751 kit includes adapter harness pigtails for older-style wiring. Tools needed: #2 Phillips screwdriver, 1/4" nut driver, multimeter, phone camera (photograph all wiring before disconnecting). Verify LED fault code on existing board before replacing — rule out pressure switch, flame sensor, and inducer motor first.
• Warranty: 1-year OEM factory warranty against manufacturing defects. Ships same business day from our warehouse.

Compatibility: Factory-matched for Carrier PG8DAA036050ABJA packaged gas furnace. Also compatible with Bryant and Payne models sharing the HK42FZ016 / 325878-751 board specification. Always verify your existing board's part number against HK42FZ016 or 325878-751 before ordering. Questions about fitment? Our HVAC parts team confirms compatibility before you buy — call or chat today.