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Carrier

OEM Carrier Control Board for Model FB4ASF042000AEAA Fan Coil

SKU: carrier-control-board-fb4asf042000aeaa Brand: Carrier
$349.95

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 FB4ASF042000AEAA Fan Coil

This genuine OEM Carrier control board serves as the operating center of your FB4ASF042000AEAA fan coil, directing blower function, fan speed staging, and integrated safety controls for consistent, efficient airflow. A faulty board can produce symptoms like an unresponsive system, erratic blower cycling, or persistent no-heat and no-cool conditions. Produced to precise factory specifications, this board provides an exact fit and full electrical compatibility with the FB4ASF042000AEAA, removing the risk that comes with aftermarket parts. Installation is a moderate task best left to a licensed HVAC professional: turn off power at the breaker, transfer the wiring harness one connector at a time against a reference photo, mount the new board, and restore power. Most technicians complete the replacement in under an hour. Installing a genuine OEM board protects your blower motor and downstream components from repeat electrical failures. We stock this part for same-day dispatch — order before 3PM CST and it ships today, returning your system to dependable, factory-grade operation fast.

Compatibility

This part is compatible with Carrier model FB4ASF042000AEAA.

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 FB4ASF042000AEAA Fan Coil?
Yes. This is the factory-specified OEM control board for the Carrier Model FB4ASF042000AEAA 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 FB4ASF042000AEAA 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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