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Carrier

OEM Carrier Control Board for Model FY5BNF018T08AAAA Fan Coil

SKU: carrier-control-board-fy5bnf018t08aaaa Brand: Carrier
$199.95

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 for Model FY5BNF018T08AAAA Fan Coil

This OEM Carrier control board is the genuine factory replacement for the FY5BNF018T08AAAA fan coil unit. Acting as the unit's command center, the board interprets thermostat signals, drives the blower motor, stages the electric heater elements, and watches the system's safety limits. If your air handler runs continuously, fails to deliver heat, throws fault codes, or the blower behaves erratically, a failed control board is a likely culprit. Manufactured to Carrier's precise specifications, this board features the exact terminal arrangement and relay configuration for the FY5BNF018T08AAAA, so it installs without splicing or adapters. This is a moderate repair: power down the unit, document the existing wiring, transfer connectors to the new board, and secure it in place. Genuine OEM electronics give you dependable performance and full compatibility that generic universal boards can't match. We keep this part in stock. Place your order before 3PM CST for same-day shipping. Need help confirming this is the right board? Our HVAC specialists are available to check your model and serial number.

Compatibility

This part is compatible with Carrier model FY5BNF018T08AAAA.

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 FY5BNF018T08AAAA Fan Coil?
Yes. This is the factory-specified OEM control board for the Carrier Model FY5BNF018T08AAAA Fan Coil. 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 FY5BNF018T08AAAA Fan Coil?
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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