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OEM Carrier Control Board for Fan Coil Model FX4CNB036T00AAAA
Carrier

OEM Carrier Control Board for Fan Coil Model FX4CNB036T00AAAA

SKU: carrier-control-board-fx4cnb036t00aaaa Brand: Carrier
$274.95

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 Fan Coil Model FX4CNB036T00AAAA

This genuine OEM Carrier control board is the electronic brain of your FX4CNB036T00AAAA fan coil, managing blower operation, fan speed, safety interlocks, and communication with the thermostat and outdoor unit. When the board fails you may see no blower response, erratic fan behavior, error codes, or a system that won't respond to a thermostat call. This factory-spec replacement is matched to your model's wiring harness, relays, and firmware logic, so it integrates seamlessly and restores proper sequencing and protective functions. Built to Carrier's exact standards, it ensures dependable, code-compliant operation that aftermarket boards can't reliably match. Installation is an advanced job best handled by an experienced DIYer or HVAC professional: disconnect power, photograph and transfer every connector to the matching terminals, secure the board, and verify operation. Plan on 30 to 45 minutes plus testing. Insist on the OEM board to avoid mismatched pinouts and nuisance faults. In stock now and shipping same-day on orders placed before 3PM CST.

Compatibility

This part is compatible with Carrier model FX4CNB036T00AAAA.

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 Fan Coil Model FX4CNB036T00AAAA?
Yes. This is the factory-specified OEM control board for the Carrier Fan Coil Model FX4CNB036T00AAAA. 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 Fan Coil Model FX4CNB036T00AAAA?
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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