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OEM Carrier DSI Control Board LH33WP002 for N6A48NG480198
OEM Carrier DSI Control Board LH33WP002 for N6A48NG480198
OEM Carrier DSI Control Board LH33WP002 for N6A48NG480198
OEM Carrier DSI Control Board LH33WP002 for N6A48NG480198
Carrier

OEM Carrier DSI Control Board LH33WP002 for N6A48NG480198

SKU: CARRIE-N6A48NG480198-CONTROL_BOARD-LH33WP002 Brand: Carrier
✓ Guaranteed to fit N6A48NG480198 — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model N6A48NG480198

This is the factory OEM Direct Spark Ignition (DSI) control board for the Carrier N6A48NG480198 packaged gas unit. The DSI control board is the nerve center of the heating system — it sequences the inducer motor, spark igniter, gas valve, and flame verification circuit in precise timing. When the board fails, common symptoms include a complete no-heat condition, repeated ignition lockouts, failure to prove flame even when the burner lights, or erratic furnace cycling that no thermostat adjustment can resolve. OEM part number LH33WP002 is the exact factory-specified replacement.

  • Specs: Direct Spark Ignition (DSI) control board | OEM part number LH33WP002 | Factory-programmed ignition timing and lockout logic | Pre-wired connector harness configuration matches original installation exactly
  • OEM vs Generic: This is a genuine OEM Carrier board with factory-calibrated ignition timing, lockout delay, and flame-sense sensitivity. Aftermarket boards often use generic timing profiles that cause nuisance lockouts, short-cycling, or premature gas valve wear — issues that don't appear until after a full heating season begins.
  • Install difficulty: 3/5 — Disconnect power and gas before beginning. Tools needed: 1/4" and 5/16" nut drivers, Phillips screwdriver, needle-nose pliers, and a phone camera to photograph all wiring before disconnecting. Transfer wiring harnesses one connector at a time to avoid miswiring. Confirm all interlocks are seated before restoring power.
  • Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our climate-controlled warehouse.

Compatibility: This board is the direct OEM replacement for Carrier N6A48NG480198 packaged gas units. Always verify your existing board's part number against LH33WP002 before ordering, and confirm your unit's voltage and staging configuration matches. Our fitment team is available to verify compatibility before you purchase — don't guess on a control board. Order today for same-day shipping and get your system back online fast.

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 $99
  • 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 info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Control Board fit my Carrier N6A48NG480198?
Yes. This is the factory-specified OEM control board for the Carrier N6A48NG480198. 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 N6A48NG480198?
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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Mike Rivera
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