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OEM Carrier DSI Control Board LH33WP003 for PY3PPA048130NB
OEM Carrier DSI Control Board LH33WP003 for PY3PPA048130NB
OEM Carrier DSI Control Board LH33WP003 for PY3PPA048130NB
OEM Carrier DSI Control Board LH33WP003 for PY3PPA048130NB
Carrier

OEM Carrier DSI Control Board LH33WP003 for PY3PPA048130NB

SKU: CARRIE-PY3PPA048130NB-CONTROL_BOARD-LH33WP003 Brand: Carrier
✓ Guaranteed to fit PY3PPA048130NB — 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 PY3PPA048130NB

This is the factory OEM Direct Spark Ignition (DSI) Control Board (part number LH33WP003), the direct factory-specified replacement for the Carrier PY3PPA048130NB packaged unit. The DSI control board is the brain of the heating system — it sequences the inducer motor, spark igniter, gas valve, and flame verification circuit in precise coordination. When this board fails, common symptoms include a complete no-heat condition, repeated ignition lockout faults, failure to prove flame even when the burner lights, or erratic cycling that cannot be resolved by resetting the thermostat.

  • Specs: Direct Spark Ignition (DSI) control | Factory OEM part number LH33WP003 | 24V control circuit compatible | Engineered to factory timing and lockout specifications for the Carrier PY3PPA048130NB platform
  • OEM vs Generic: This is a genuine OEM board — not an aftermarket clone. OEM boards retain exact ignition timing delays, retry logic, and lockout thresholds programmed at the factory. Generic boards frequently ship with mismatched timing parameters that cause nuisance lockouts, voided equipment warranties, and premature heat exchanger stress.
  • Install Difficulty: 3/5 — Intermediate DIY or professional recommended. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter (to verify 24V control circuit), and a phone or camera to photograph all wiring harness connections before removal. Always disconnect power at the disconnect box and verify zero voltage before handling the board.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed by 3PM local time ship same business day from our warehouse.

Compatibility: Designed and verified for the Carrier PY3PPA048130NB packaged gas/electric unit. Cross-reference your existing board's part number against LH33WP003 before ordering, and confirm your unit's data plate voltage matches. Not sure it fits? Our HVAC parts specialists verify fitment at no charge — contact us before you order.

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 PY3PPA048130NB?
Yes. This is the factory-specified OEM control board for the Carrier PY3PPA048130NB. 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 PY3PPA048130NB?
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
HVAC Parts Specialist — Online