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OEM Carrier Control Board HK42FZ011 for Model GB1AAV036065AFJA
Carrier

OEM Carrier Control Board HK42FZ011 for Model GB1AAV036065AFJA

SKU: carrier-control-board-gb1aav036065afja Brand: Carrier
$149.95

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 HK42FZ011 for Model GB1AAV036065AFJA

The Carrier HK42FZ011 furnace control board is the genuine OEM circuit board that manages the entire heating sequence on your GB1AAV036065AFJA gas furnace. It governs igniter timing, gas valve operation, blower and inducer relays, flame sensing, and built-in safety lockouts, using the onboard LED to flash diagnostic fault codes. When a furnace is completely dead, ignites erratically, or throws repeated error codes, a failed control board is a frequent cause. This exact-fit factory replacement restores proper sequencing and protects every downstream component. Replacement is moderately involved and best suited to a confident DIYer or technician: photograph the wiring, cut power, transfer each labeled connector to the matching terminal on the new board, and reinstall the mounting screws. Always confirm the wiring matches before powering up. This is an authentic Carrier OEM board, ensuring correct firmware and relay ratings rather than a remanufactured guess. In stock and ready to ship same-day on orders placed before 3PM CST. Get your system back online with the right factory part.

Compatibility

This part is compatible with Carrier model GB1AAV036065AFJA.

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 Model GB1AAV036065AFJA?
Yes. This is the factory-specified OEM control board for the Carrier Model GB1AAV036065AFJA. 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 Model GB1AAV036065AFJA?
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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