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OEM Carrier Control Board for Model N6D48NG480203 - Furnace Board
Carrier

OEM Carrier Control Board for Model N6D48NG480203 - Furnace Board

SKU: carrier-control-board-n6d48ng480203 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 Model N6D48NG480203 - Furnace Board

This genuine OEM Carrier integrated furnace control board is the factory-spec controller for model N6D48NG480203, managing ignition sequencing, blower delays, safety interlocks, and onboard fault diagnostics. Symptoms of a failed board include no ignition, unresponsive inducer or blower motors, blank or flashing error codes, and intermittent no-heat lockouts. Engineered to the precise relay configuration, firmware, and harness pinout of your furnace, this authentic Carrier board reestablishes the exact timing and safety logic that aftermarket universal boards cannot fully replicate. Installation is an intermediate task: label and photograph all wiring, kill power at the breaker, move connectors one at a time to avoid errors, and secure the new board on the existing mounting standoffs — typically 30 to 45 minutes. Check grounding and line voltage before restoring power. Tested for compatibility with N6D48NG480203 and built to Carrier OEM quality standards. In stock and ships same-day on orders placed before 3PM CST. Order genuine Carrier control boards from NationalHVACParts.com.

Compatibility

This part is compatible with Carrier model N6D48NG480203.

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 N6D48NG480203 - Furnace Board?
Yes. This is the factory-specified OEM control board for the Carrier Model N6D48NG480203 - Furnace Board. 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 N6D48NG480203 - Furnace Board?
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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