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OEM Carrier Control Board for Model FK4BNF002005AAAA Fan Coil
Carrier

OEM Carrier Control Board for Model FK4BNF002005AAAA Fan Coil

SKU: carrier-control-board-fk4bnf002005aaaa 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 for Model FK4BNF002005AAAA Fan Coil

This OEM Carrier control board manages the core electronics of your FK4BNF002005AAAA fan coil, directing blower operation, monitoring safety limits, and processing thermostat demand for consistent comfort. If the existing board has failed, symptoms like an unresponsive blower, no airflow on a call for heat or cool, or sporadic cycling are common, and a genuine Carrier board restores correct, factory-spec function. Made specifically for the FK4BNF002005AAAA, it fits the original mounting bosses and wiring connectors exactly, so no modifications or splices are needed. The replacement is a moderate DIY task: cut power at the breaker, photograph the harness for reference, and relocate connectors to the new board one at a time, usually within an hour; those uncomfortable with wiring should use a licensed technician. Each unit is tested to Carrier reliability standards. Order before 3PM CST for same-day shipping and get your air handler back in service fast. Selecting the OEM board ensures a precise fit, full functionality, and the durable performance Carrier engineered into your system.

Compatibility

This part is compatible with Carrier model FK4BNF002005AAAA.

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 FK4BNF002005AAAA Fan Coil?
Yes. This is the factory-specified OEM control board for the Carrier Model FK4BNF002005AAAA 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 FK4BNF002005AAAA 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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