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Carrier

OEM Carrier Control Board CTRL004 for Model FB4BNF024005AAAA

SKU: carrier-control-board-fb4bnf024005aaaa Brand: Carrier
$189.95

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 CTRL004 for Model FB4BNF024005AAAA

This genuine OEM Carrier control board is the direct factory replacement for your Carrier FB4BNF024005AAAA fan coil. The board is the brain of your air handler, managing blower operation, fan speed sequencing, safety interlocks, and communication with your thermostat. Telltale signs of a failed board include a blower that won't start, intermittent or erratic cycling, diagnostic fault codes, or a unit that runs continuously. Pre-programmed to your model's exact specifications, this OEM part eliminates the timing and compatibility issues common with universal boards. Installation is a moderate-level repair — disconnect power, photograph the wiring for reference, move the labeled connectors to the matching headers, and secure the board to its standoffs, about 30-45 minutes. Always shut off power at the breaker first and double-check every connection before restoring power. Using the authentic Carrier component protects your equipment warranty and ensures proper relay logic. This part is in stock and ships same-day on every order placed before 3PM CST, so your comfort system is back up and running with minimal downtime.

Compatibility

This part is compatible with Carrier model FB4BNF024005AAAA.

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 FB4BNF024005AAAA?
Yes. This is the factory-specified OEM control board for the Carrier Model FB4BNF024005AAAA. 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 FB4BNF024005AAAA?
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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