OEM Carrier Furnace Control Board HK42FZ013 for Model PG8JAA036070ACJA

This OEM integrated furnace control (IFC) board is the factory-specified replacement for the Carrier PG8JAA036070ACJA packaged gas unit. The control board is the brain of your furnace — it sequences every stage of operation including inducer start, igniter warm-up, gas valve activation, blower timing, and safety lockout logic. When it fails, symptoms typically include a complete no-heat condition, continuous lockout with a diagnostic fault code, failed ignition sequences, or erratic blower behavior that won't clear with a reset.

• Specs: OEM Part Number HK42FZ013 | Integrated Furnace Control (IFC) Board | 24V control circuit compatible | Factory-matched diagnostic LED fault code logic | Includes terminal labels for direct wire-for-wire swap
• OEM vs Generic: This is a genuine Carrier OEM board — firmware and safety thresholds are factory-calibrated to match the PG8JAA036070ACJA exactly. Aftermarket boards may lack model-specific lockout timing and pressure switch logic, introducing safety and reliability risks.
• Install difficulty: 3/5 — Requires disconnecting 120V power and discharging any stored voltage before proceeding. Tools needed: 1/4" nut driver, flathead and Phillips screwdrivers, needle-nose pliers, phone camera (photograph all wiring harness connections before removal). Label every connector. Check inducer and pressure switch function after install to confirm board is reading inputs correctly.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PG8JAA036070ACJA packaged gas unit. Always verify the OEM part number printed on your existing board's label before ordering — model variants and revision levels can affect board compatibility. Our fitment team is available to confirm your application before you order. Order now and get same-day shipping on all in-stock parts.