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Carrier

OEM Carrier Fan Coil Control Board for Model FC4DNF018000AAAA

SKU: carrier-control-board-fc4dnf018000aaaa Brand: Carrier
$224.95

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

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OEM Carrier Fan Coil Control Board for Model FC4DNF018000AAAA

This genuine OEM Carrier control board runs the essential functions of your FC4DNF018000AAAA fan coil, managing blower operation, electric heat staging, and the built-in safety interlocks. When the board fails, typical symptoms include a dead blower, intermittent operation, or fault codes at the thermostat — replacing it with the correct factory board restores stable, dependable performance. Produced to Carrier's exact specifications, this board fits the FC4DNF018000AAAA directly, matching the original connector layout and relay ratings so no rewiring or jumper changes are needed. The replacement is moderate in difficulty: turn off power at the breaker, photograph the wiring, move each plug one at a time, and secure the board to the factory standoffs — about 30-45 minutes for an experienced technician. We recommend professional installation to verify proper sequencing afterward. Genuine OEM boards protect your warranty and deliver longevity universal parts rarely match. In stock and shipping same-day on orders placed before 3PM CST. Restore reliable service to your Carrier fan coil with the right factory control board.

Compatibility

This part is compatible with Carrier model FC4DNF018000AAAA.

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 FC4DNF018000AAAA?
Yes. This is the factory-specified OEM control board for the Carrier Model FC4DNF018000AAAA. 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 FC4DNF018000AAAA?
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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