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Carrier

OEM Carrier Control Board Replacement for Model FA4BNC018005AAAA

SKU: carrier-control-board-fa4bnc018005aaaa 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 Control Board Replacement for Model FA4BNC018005AAAA

This OEM Carrier control board serves as the command center of your FA4BNC018005AAAA fan coil unit, directing blower startup, fan speed control, and protective interlocks to keep your air handler running smoothly and safely. Built to precise Carrier specifications, it restores reliable signaling between the thermostat, blower motor, and system relays once the original board fails from power surges, humidity, or burnt components. Telltale signs of a bad board include a blower that won't energize, erratic cycling, or a thermostat the unit ignores. As a direct-fit replacement for the FA4BNC018005AAAA, installation is moderate difficulty: photograph the wiring harness, move each connector one at a time to the new board, and verify the dip-switch and jumper settings match the original setup—about 30-45 minutes for a confident DIYer, or call a qualified technician if you're unsure. Genuine OEM construction guarantees correct relay ratings and a longer lifespan than aftermarket boards. In stock and ships same-day on orders placed before 3PM CST so you can restore comfort fast.

Compatibility

This part is compatible with Carrier model FA4BNC018005AAAA.

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 FA4BNC018005AAAA?
Yes. This is the factory-specified OEM control board for the Carrier Model FA4BNC018005AAAA. 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 FA4BNC018005AAAA?
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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