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OEM Carrier DSI Control Board LH33WP003 for PY2PPB042060AA
OEM Carrier DSI Control Board LH33WP003 for PY2PPB042060AA
OEM Carrier DSI Control Board LH33WP003 for PY2PPB042060AA
OEM Carrier DSI Control Board LH33WP003 for PY2PPB042060AA
Carrier

OEM Carrier DSI Control Board LH33WP003 for PY2PPB042060AA

SKU: CARRIE-PY2PPB042060AA-CONTROL_BOARD-LH33WP003 Brand: Carrier
✓ Guaranteed to fit PY2PPB042060AA — 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 PY2PPB042060AA

This is the genuine OEM factory-replacement Direct Spark Ignition (DSI) Control Board (part number LH33WP003) for the Carrier PY2PPB042060AA packaged rooftop unit. The DSI control board is the central intelligence of your unit's heating system — it orchestrates spark ignition, gas valve activation, combustion blower sequencing, indoor fan motor operation, and continuous flame sensing. When this board fails, the most common symptoms include a no-heat condition, repeated ignition lockouts after failed ignition attempts, the burner lighting briefly then shutting down, or a complete failure to advance through the heating sequence. Diagnostic LED fault codes on the board itself can confirm failure before ordering.

  • Part Specs: Carrier OEM Part # LH33WP003 | Direct Spark Ignition (DSI) | Microprocessor-based logic | Integrated LED fault-code diagnostics | 120V input control circuit
  • OEM vs Generic: This is a genuine Carrier OEM board engineered to exact factory specifications for the PY2PPB042060AA. Aftermarket boards may lack full DSI timing calibration and LED diagnostic accuracy, risking nuisance lockouts or reduced safety-shutoff responsiveness.
  • Install Difficulty: 3/5 — Requires disconnecting 120V power and control wiring harnesses. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, phone/camera to photograph all wiring connections before removal. Note and match all terminal labels carefully. Recommend qualified HVAC technician for gas appliance work.
  • Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered for the Carrier PY2PPB042060AA packaged rooftop unit. Always verify your existing board's part number label before ordering — cross-reference with LH33WP003A if you have a revision-suffix board. Questions about fitment? Our HVAC parts specialists verify compatibility before you order — no guesswork required.

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 PY2PPB042060AA?
Yes. This is the factory-specified OEM control board for the Carrier PY2PPB042060AA. 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 PY2PPB042060AA?
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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