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OEM Carrier Furnace Control Board HK42FZ013 for GB1AAV036045AGJA
Carrier

OEM Carrier Furnace Control Board HK42FZ013 for GB1AAV036045AGJA

SKU: carrier-control-board-gb1aav036045agja Brand: Carrier
$189.95

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

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OEM Carrier Furnace Control Board HK42FZ013 for GB1AAV036045AGJA

This genuine OEM Carrier furnace control board (HK42FZ013) is the brain of your heating system, managing ignition sequencing, blower timing, safety lockouts, and diagnostic fault codes. When the board fails you may see no response at all, a blower that won't shut off, erratic cycling, or a flashing error LED. This board is the correct direct-fit replacement for the Carrier GB1AAV036045AGJA gas furnace, with matching relay layout, connector pinouts, and firmware so your existing wiring harness plugs right in. Replacement is moderate in difficulty—best for confident DIYers or a technician: photograph the wiring, cut power, transfer connectors one at a time to the identical terminals, and remount. Installing the OEM board preserves Carrier's exact timing and safety logic that generic boards often approximate incorrectly, which can cause nuisance faults. Each board is tested to OEM specification. In stock and ships same-day when you order before 3PM CST. Restore full furnace control and clear those fault codes with the board Carrier built for your unit.

Compatibility

This part is compatible with Carrier model GB1AAV036045AGJA.

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 GB1AAV036045AGJA?
Yes. This is the factory-specified OEM control board for the Carrier GB1AAV036045AGJA. 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 GB1AAV036045AGJA?
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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