OEM Carrier Furnace Control Board HK42FZ013 for Model PG8JAA024045ABJA

This is the genuine OEM Integrated Furnace Control (IFC) board for the Carrier PG8JAA024045ABJA gas furnace. The control board is the central brain of your furnace — it sequences the inducer motor, hot surface igniter, gas valve, and blower motor through every heating cycle. When this board fails, you may experience symptoms including a complete no-heat lockout, erratic ignition attempts, fault codes flashing on the board's LED, unexpected blower behavior, or a furnace that starts but immediately shuts down. Replacing the control board with a genuine OEM unit ensures all timing sequences, safety lockout thresholds, and fault diagnostics match factory specifications exactly.

• Part Number & Specs: OEM Part No. HK42FZ013 | Integrated Furnace Control (IFC) board | 24V control circuit | Compatible with single-stage gas valve and HSI ignition system | Factory-programmed timing and lockout logic
• OEM vs Generic: OEM control boards carry factory-programmed firmware and certified safety lockout sequences. Generic or aftermarket boards frequently use approximated timing values that can cause nuisance lockouts, premature component wear, or — critically — fail to honor safety shutoffs, creating a potential hazard.
• Install Difficulty: 3/5 — Requires disconnecting 120V line voltage and multiple low-voltage control wiring harnesses. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, smartphone camera (photograph all wiring before disconnection), and a multimeter for post-install verification. Always shut off the gas supply and disconnect power at the breaker before starting. If fault codes persist after replacement, consult a licensed HVAC technician.
• Warranty & Shipping: Backed by a 1-year OEM factory warranty against defects. In stock and ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: This board is the direct OEM replacement for Carrier model PG8JAA024045ABJA. Always confirm your existing board's part number printed on the board label before ordering to ensure exact fitment. Compatible model variants may include related PG8JAA series units — contact our fitment team for confirmation. Orders placed today ship same day. Questions about compatibility? Our HVAC parts specialists verify fitment before you buy.