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OEM Carrier Control Board LC750LCCMRAY500 for Model LC750LCCMRAY500
Carrier

OEM Carrier Control Board LC750LCCMRAY500 for Model LC750LCCMRAY500

SKU: carrier-control-board-lc750lccmray500 Brand: Carrier
$311.95

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 LC750LCCMRAY500 for Model LC750LCCMRAY500

This genuine OEM Carrier control board is the factory replacement for Carrier model LC750LCCMRAY500 packaged units. Acting as the system's main controller, the board sequences cooling and heating operation, manages blower delays, monitors safety circuits, and reports fault codes that simplify troubleshooting. A failing board commonly causes no-cool or no-heat conditions, repeated safety lockouts, or flashing diagnostic codes; the correct OEM board restores factory sequencing and protects connected components like the contactor and motors. Engineered to Carrier's exact specifications, it reproduces the original connector layout, relay ratings, and control firmware, so the existing harnesses plug directly in with no rewiring. Installation is moderate difficulty for a qualified technician: disconnect power, transfer connectors one at a time to the matching ports, replicate the old board's DIP switch settings, and verify a complete operating cycle after restoring power. Choosing OEM avoids the mismatched behavior of aftermarket boards and preserves your equipment warranty. Order before 3PM CST and your board ships the same day from in-stock inventory. National HVAC Parts delivers authentic Carrier parts quickly and reliably.

Compatibility

This part is compatible with Carrier model LC750LCCMRAY500.

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 LC750LCCMRAY500?
Yes. This is the factory-specified OEM control board for the Carrier Model LC750LCCMRAY500. 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 LC750LCCMRAY500?
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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