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OEM Carrier DSI Control Board LH33WP003 for PY2PNB024060NB
OEM Carrier DSI Control Board LH33WP003 for PY2PNB024060NB
OEM Carrier DSI Control Board LH33WP003 for PY2PNB024060NB
OEM Carrier DSI Control Board LH33WP003 for PY2PNB024060NB
Carrier

OEM Carrier DSI Control Board LH33WP003 for PY2PNB024060NB

SKU: CARRIE-PY2PNB024060NB-CONTROL_BOARD-LH33WP003 Brand: Carrier
✓ Guaranteed to fit PY2PNB024060NB — 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 LH33WP003 for Model PY2PNB024060NB

This is the genuine OEM Carrier LH33WP003 Direct Spark Ignition (DSI) Control Board — the factory-specified replacement for the Carrier PY2PNB024060NB packaged unit. As the central brain of your system's combustion sequence, this microprocessor-based board controls spark ignition, gas valve operation, blower and indoor fan motors, flame sensing, and safety lockout logic. When it fails, you'll typically experience a no-heat condition, repeated ignition lockouts, failure to advance through the ignition sequence, or erratic blower behavior that no thermostat adjustment can resolve.

  • Part Number: LH33WP003 (also supersedes LH33WP003A) | Direct Spark Ignition (DSI) microprocessor control board | Factory-matched for Carrier PY2PNB024060NB packaged units
  • OEM vs Generic: This OEM board uses factory-calibrated timing for trial-for-ignition, flame sensing threshold, and lockout sequencing. Aftermarket boards may use approximate timing windows, increasing the risk of nuisance lockouts or unsafe ignition retries.
  • Install Difficulty: 3/5 — Requires shutting off gas and electrical supply before beginning. Document all wire harness connections with photos before removal. Tools needed: #2 Phillips screwdriver, 1/4" and 5/16" nut drivers, needle-nose pliers, and a multimeter for post-install verification. A qualified HVAC technician is strongly recommended for this repair.
  • Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse — get your system back online fast.

Compatibility: Engineered as a direct drop-in replacement for the Carrier PY2PNB024060NB packaged gas/electric unit. Also fits additional Carrier, Bryant, and Payne rooftop and packaged equipment that originally used the LH33WP003 or LH33WP003A control board — verify your unit's data plate and OEM part number before ordering. Not sure if this fits? Contact our parts specialists and we'll confirm fitment before you buy. In stock and ships 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 PY2PNB024060NB?
Yes. This is the factory-specified OEM control board for the Carrier PY2PNB024060NB. 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 PY2PNB024060NB?
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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