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OEM Carrier DSI Control Board LH33WP002 for N6A48NG481882
OEM Carrier DSI Control Board LH33WP002 for N6A48NG481882
OEM Carrier DSI Control Board LH33WP002 for N6A48NG481882
OEM Carrier DSI Control Board LH33WP002 for N6A48NG481882
Carrier

OEM Carrier DSI Control Board LH33WP002 for N6A48NG481882

SKU: CARRIE-N6A48NG481882-CONTROL_BOARD-LH33WP002 Brand: Carrier
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Texas CMBL #19328542014
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OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model N6A48NG481882

This is the OEM factory-specified Direct Spark Ignition (DSI) control board for the Carrier N6A48NG481882 packaged gas/electric unit. The DSI control board is the brain of your system's heating sequence — it manages the inducer motor, spark ignition, gas valve timing, flame verification, and safety lockout logic. When this board fails, common symptoms include a no-heat condition, repeated ignition lockouts, failure to prove flame, erratic burner cycling, or a complete loss of furnace function while the cooling side continues to operate normally.

  • Specs: Direct Spark Ignition (DSI) control board | OEM Part Number: LH33WP002 | 24V control circuit compatible | Factory-programmed ignition timing and lockout sequences pre-loaded
  • OEM vs Generic: This is a genuine OEM Carrier board manufactured to exact factory specifications. Aftermarket boards may lack correct lockout timing, LED diagnostic codes, or safety circuit tolerances — risking nuisance lockouts, improper gas valve sequencing, and potential safety issues. OEM is always recommended for control boards.
  • Install Difficulty: 3/5 — Requires shutting off gas supply and disconnecting 24V and line-voltage wiring harnesses. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections and connector positions before removal. If LED fault codes are present, document them before replacing the board.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed by 3PM local time ship same business day from our climate-controlled warehouse.

Compatibility: This DSI control board is the direct OEM replacement for Carrier model N6A48NG481882 packaged units. Always verify the part number LH33WP002 against your existing board label before ordering. If you are unsure of fitment, our HVAC parts specialists are available to confirm compatibility before you purchase — ensuring you get the right part the first time. In stock and ready to ship today.

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 N6A48NG481882?
Yes. This is the factory-specified OEM control board for the Carrier N6A48NG481882. 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 N6A48NG481882?
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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