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OEM Carrier DSI Control Board LH33WP003 for PY3PPA036060NB
OEM Carrier DSI Control Board LH33WP003 for PY3PPA036060NB
OEM Carrier DSI Control Board LH33WP003 for PY3PPA036060NB
OEM Carrier DSI Control Board LH33WP003 for PY3PPA036060NB
Carrier

OEM Carrier DSI Control Board LH33WP003 for PY3PPA036060NB

SKU: CARRIE-PY3PPA036060NB-CONTROL_BOARD-LH33WP003 Brand: Carrier
✓ Guaranteed to fit PY3PPA036060NB — 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 PY3PPA036060NB

This is the genuine OEM Direct Spark Ignition (DSI) control board for the Carrier PY3PPA036060NB packaged rooftop unit. As the central intelligence of your heating system, this board manages spark ignition sequencing, gas valve activation, combustion blower control, and real-time flame sensing. When it fails, symptoms typically include a no-heat condition, ignition lockout after one or more failed trials, erratic blower operation, or a system that starts briefly then shuts down — often with a fault LED code on the board itself.

  • Part Type: Direct Spark Ignition (DSI) Integrated Furnace Control Board | OEM Part # LH33WP003 | Microprocessor-based design with onboard status LED fault diagnostics
  • OEM vs Generic: This factory-authorized OEM board is engineered to Carrier's original design specifications, ensuring full compatibility with the PY3PPA036060NB's ignition timing, flame-sensing thresholds, and safety lockout logic. Aftermarket boards may use different timing tolerances, risking nuisance lockouts or unsafe ignition behavior.
  • Install Difficulty: 3/5 — Requires disconnecting 24V control wiring, high-voltage blower leads, and gas valve connections. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter for pre-install voltage verification. Always confirm power is off at the disconnect and take a clear photo of all wiring harnesses before removal. Recommended for experienced DIYers or licensed HVAC technicians.
  • Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse — get your unit back online fast.

Compatibility: Engineered as the direct OEM replacement for Carrier model PY3PPA036060NB packaged rooftop units equipped with a Direct Spark Ignition heating system. Verify your existing board's part number (LH33WP003 or LH33WP003A) against your unit's data plate before ordering. Not sure? Our HVAC parts specialists are available to confirm fitment before you buy.

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 PY3PPA036060NB?
Yes. This is the factory-specified OEM control board for the Carrier PY3PPA036060NB. 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 PY3PPA036060NB?
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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