OEM Carrier Furnace Control Board HK42FZ066 for Model PG96VAT66120DBAA

This is the genuine OEM Integrated Furnace Control (IFC) board for the Carrier PG96VAT66120DBAA 96% two-stage gas furnace. The control board is the brain of your heating system — it sequences the inducer motor, igniter, gas valve, blower motor, and all safety circuits. When this board fails, symptoms typically include a no-heat lockout condition, error codes flashing on the status LED, intermittent ignition failures, or a furnace that powers on but will not progress past the inducer pre-purge stage. In two-stage systems like the PG96VAT66120DBAA, a faulty board can also cause the unit to run only on first-stage heat, preventing full capacity output.

• OEM Part Number: HK42FZ066 | Board ID: CEBD431102-04-RA / CEPL131102 | Dimensions: 9.6″ × 7.6″ × 1.3″ | Designed for Carrier two-stage 96% AFUE gas furnaces
• OEM vs Generic: This is a Factory Authorized Part manufactured to exact Carrier Corporation specifications, ensuring correct staging logic, safety lockout timing, and fault-code behavior. Generic aftermarket boards frequently miscalibrate ignition trial time and retry counts, risking heat exchanger stress and voided equipment warranties.
• Install Difficulty: 3/5 — Disconnect power and gas before beginning. Tools needed: #2 Phillips screwdriver, 1/4″ nut driver, needle-nose pliers, phone/camera for wiring documentation. Note: The model plug from your existing board must be transferred to the replacement unit — it is NOT included. Photograph all wire harness connections before removal. Allow 30–60 minutes for a careful swap.
• Warranty: 1-year OEM manufacturer warranty from date of purchase. Stocked and ships same business day from our warehouse. Note: HK42FZ066 is superseded — we ship the factory-authorized direct replacement HK42FZ094, which is fully compatible with the PG96VAT66120DBAA.

Compatibility & Ordering Notes: Verified fit for Carrier PG96VAT66120DBAA two-stage 96% AFUE gas furnaces. Also compatible with select Bryant and Payne furnace platforms sharing the same control board platform. Always confirm your existing board's part number on the board label or unit data plate before ordering. Questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today. In stock — order by 3 PM local time for same-day shipping.