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OEM Carrier Control Board Replacement for Model FX4ANF018000ABAA
Carrier

OEM Carrier Control Board Replacement for Model FX4ANF018000ABAA

SKU: carrier-control-board-fx4anf018000abaa Brand: Carrier
$229.95

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 Replacement for Model FX4ANF018000ABAA

This genuine OEM Carrier control board is the electronic brain of your FX4ANF018000ABAA fan coil unit, managing blower operation, relay sequencing, safety interlocks, and communication with the thermostat and outdoor unit. When the board fails you may see a blower that will not start, erratic cycling, no response to thermostat calls, or fault codes on the diagnostic LED. Replacing the control board with this exact-fit OEM part restores correct timing and protection logic that aftermarket boards often cannot replicate. The board is matched to the FX4ANF018000ABAA so connector layout and firmware behavior align with your equipment. Installation is moderately difficult and best handled by a qualified HVAC technician: cut power at the disconnect, photograph and label all wiring, transfer connectors one at a time, and verify jumper and dip-switch settings against the unit's wiring diagram. Proper grounding is essential to protect the new board. Built to Carrier OEM standards for dependable, long-term operation. In stock now. Order before 3PM CST and it ships same-day so you can complete the repair quickly.

Compatibility

This part is compatible with Carrier model FX4ANF018000ABAA.

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 FX4ANF018000ABAA?
Yes. This is the factory-specified OEM control board for the Carrier Model FX4ANF018000ABAA. 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 FX4ANF018000ABAA?
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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