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OEM Carrier Control Board HK42FZ009 for GB1AAV036111AFJA
Carrier

OEM Carrier Control Board HK42FZ009 for GB1AAV036111AFJA

SKU: carrier-control-board-gb1aav036111afja Brand: Carrier
$194.95

Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.

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OEM Carrier Control Board HK42FZ009 for GB1AAV036111AFJA

The Carrier HK42FZ009 furnace control board is a genuine OEM replacement for the GB1AAV036111AFJA gas furnace. This integrated circuit board is the brain of the system, sequencing the inducer motor, igniter, gas valve, blower, and safety switches while reading the flame sensor and thermostat. A failed board causes no-heat, blower problems, erratic operation, or flashing diagnostic LED fault codes. Replacement is a moderate job: cut power, photograph and label every wire harness, unsnap the old board, transfer the connectors one at a time to the identical terminals on the new board, and verify the model jumper settings. Built to exact Carrier specifications for correct timing, safe sequencing, and full compatibility with the furnace's original wiring. Installing a genuine board avoids the mismatched-timing and software issues common with universal replacements. Restoring the control board brings your furnace back to dependable, code-correct operation. We ship same-day on orders placed before 3PM CST. Backed by our fit guarantee for the GB1AAV036111AFJA. Order the genuine Carrier HK42FZ009 today.

Compatibility

This part is compatible with Carrier model GB1AAV036111AFJA.

Shipping

Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.

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 $75
  • 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 support@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Control Board fit my Carrier GB1AAV036111AFJA?
Yes. This is the factory-specified OEM control board for the Carrier GB1AAV036111AFJA. 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 control board on my Carrier GB1AAV036111AFJA?
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 control 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 control 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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