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OEM Carrier Control Board CB-FX4CSX024 for Model FX4CSX024000AAAA
Carrier

OEM Carrier Control Board CB-FX4CSX024 for Model FX4CSX024000AAAA

SKU: carrier-control-board-fx4csx024000aaaa Brand: Carrier
$249.95

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 CB-FX4CSX024 for Model FX4CSX024000AAAA

This genuine OEM Carrier control board is the electronic command center for the FX4CSX024000AAAA fan coil unit, coordinating blower activation, fan speed selection, and built-in safety protections. Symptoms of a bad board include a non-responsive blower motor, random fan cycling, and failure to respond to thermostat calls for heating or cooling. Produced to Carrier factory standards, this part provides the exact relay capacity, connector layout, and control logic the FX4CSX024000AAAA requires, so there's no risk of the mismatched behavior common with generic boards. Replacement is a moderate task best handled by a qualified HVAC professional and usually takes 30 to 45 minutes: disconnect power at the breaker, document the wiring with a photo, move each harness plug to the new board, and secure it to the original mounting posts. Confirm every connection before re-energizing the unit. OEM parts keep your warranty intact and safeguard adjacent components. This control board is in stock and ships same-day when ordered before 3PM CST.

Compatibility

This part is compatible with Carrier model FX4CSX024000AAAA.

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 FX4CSX024000AAAA?
Yes. This is the factory-specified OEM control board for the Carrier Model FX4CSX024000AAAA. 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 FX4CSX024000AAAA?
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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