OEM Carrier Integrated Furnace Control Board HK42FZ018 for Model PG9YAA060100ACSS

This is the factory OEM Integrated Furnace Control (IFC) board for the Carrier PG9YAA060100ACSS gas furnace. The control board is the brain of your heating system — it sequences ignition, monitors safety switches and pressure sensors, drives inducer and blower timing, and triggers lockout codes when a fault is detected. Common failure symptoms include the furnace not heating at all, repeated ignition lockouts, erratic or short-cycling operation, blower running continuously, or error codes flashing on the board itself. If your furnace is stuck in a fault loop or won't advance past a specific stage, the IFC board is a primary suspect after ruling out individual components.

• OEM Part Number: HK42FZ018 | Cross-references: CEPL130590-01, CEBD430590-10A | Factory-matched firmware and relay ratings for the PG9YAA060100ACSS
• OEM vs Generic: This is a genuine Carrier OEM board — not an aftermarket clone. OEM boards carry factory-calibrated timing sequences and relay logic. Aftermarket boards can introduce ignition timing drift or false safety trips that void equipment warranties.
• Install Difficulty: 3/5 — Board replacement requires shutting off gas and 120V power, photographing and labeling all wire harness connections, and verifying jumper settings match the removed board. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, phone camera for wiring photos. Basic HVAC service knowledge recommended; consult a licensed technician if unsure.
• Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PG9YAA060100ACSS packaged gas furnace. Also fits select Carrier, Bryant, and Payne models using the HK42FZ018 board — always verify the part number on your existing board's label before ordering. Questions about fitment? Our HVAC parts specialists confirm compatibility before your order ships — contact us today and get back to heat fast.