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OEM Carrier Furnace Control Board HK42FZ066 for PG96VAT66120DCAA
OEM Carrier Furnace Control Board HK42FZ066 for PG96VAT66120DCAA
OEM Carrier Furnace Control Board HK42FZ066 for PG96VAT66120DCAA
OEM Carrier Furnace Control Board HK42FZ066 for PG96VAT66120DCAA
Carrier

OEM Carrier Furnace Control Board HK42FZ066 for PG96VAT66120DCAA

SKU: CARRIE-PG96VAT66120DCAA-CONTROL_BOARD-HK42FZ066 Brand: Carrier
✓ Guaranteed to fit PG96VAT66120DCAA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Furnace Control Board HK42FZ066 for Model PG96VAT66120DCAA

This is the genuine OEM Carrier Integrated Furnace Control (IFC) board, part number HK42FZ066, factory-specified for the Carrier PG96VAT66120DCAA 96% AFUE two-stage gas furnace. The control board is the central brain of your furnace — it sequences the inducer motor, hot surface igniter, gas valve, and blower, and monitors all safety switches in real time. When this board fails, you may experience a complete no-heat lockout, repeated ignition failures, erratic blower behavior, a furnace that starts then immediately shuts down, or fault codes flashing on the LED diagnostic display with no clear single-component cause.

  • OEM Part Number: HK42FZ066 (board ID: CEBD431102-04-RA) | Direct OEM successor: HK42FZ094 | Factory-matched to Carrier PG96VAT66120DCAA specifications
  • OEM vs Generic: OEM control boards are programmed with Carrier's exact timing sequences, fault-code logic, and safety thresholds. Aftermarket boards often lack model-specific fault diagnostics and can introduce nuisance lockouts or void remaining equipment warranties.
  • Install Difficulty: 3/5 — Requires safely disconnecting 120V and 24V wiring harnesses, photographing all connector positions before removal, and transferring wiring one-to-one to the new board. Tools needed: flat-head and Phillips screwdrivers, 1/4" nut driver, multimeter, smartphone for wiring photos. Always shut off the gas and disconnect power at the breaker before servicing.
  • Warranty: 1-year OEM manufacturer's warranty. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered for the Carrier PG96VAT66120DCAA 96% two-stage gas furnace. Note that HK42FZ066 was discontinued by Carrier in August 2020; the factory-authorized current equivalent is HK42FZ094, which is a drop-in replacement. Verify your existing board's part number on the board label before ordering. Questions about fitment? Our HVAC parts specialists confirm compatibility before every order — call or chat today. In stock — ships today.

Shipping Information

  • Orders placed before 3PM CST ship same business day
  • Standard delivery: 2-5 business days
  • Express shipping available at checkout
  • Free shipping on orders over $99
  • Tracking number emailed upon shipment

Return Policy

  • 30-day returns on unused parts in original packaging
  • Electrical parts (capacitors, contactors, control boards) are final sale once installed
  • Email info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Circuit Board fit my Carrier PG96VAT66120DCAA?
Yes. This is the factory-specified OEM circuit board for the Carrier PG96VAT66120DCAA. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the circuit board on my Carrier PG96VAT66120DCAA?
Difficulty: Advanced (1–2 hrs)
Step 1: Turn off breaker. Step 2: PHOTOGRAPH all wire connections before touching anything. Step 3: Label each wire with tape. Step 4: Disconnect all wires, remove old board. Step 5: Mount new board, reconnect all wires matching your photo exactly. Step 6: Restore power and test all modes. Exact part number match is critical.
My HVAC system is completely dead. What could be wrong?
Completely dead HVAC (no LED on board) = failed control board or blown fuse. Check board fuse first (3A or 5A, costs $1–$5). If fuse is good and board has power but no LED, board is dead. Always photograph wiring before replacing.
Is this circuit board compatible with Bryant or Payne too?
Many Carrier parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Carrier circuit board?
OEM essential. Control boards are model-specific with precise firmware and connector layouts. Aftermarket boards rarely match all functions and can cause intermittent failures or safety issues. Always match the exact OEM part number.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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Mike Rivera
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