OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3PPA060130NA

This is the factory OEM Direct Spark Ignition (DSI) Control Board (part number LH33WP003) for the Carrier PY3PPA060130NA packaged gas/electric unit. The DSI control board is the brain of your furnace or packaged system's heating section — it sequences the inducer motor, spark igniter, gas valve, and flame verification circuit in precise timing. When this board fails, symptoms typically include a no-heat condition, repeated ignition lockout faults, unexpected short-cycling, or a system that sparks but never sustains a flame. Replacing the board with a genuine OEM part ensures factory-correct timing sequences and full compatibility with your unit's pressure switch, limit switches, and gas valve.

• Specs: Direct Spark Ignition (DSI) control board | OEM Part No. LH33WP003 | Factory-matched timing and fault logic for Carrier PY3PPA060130NA | 24V control circuit compatible
• OEM vs Generic: This is a genuine Carrier OEM board engineered to exact factory specifications. Aftermarket boards may use different ignition timing tolerances, risking nuisance lockouts, voided equipment warranties, or premature gas valve wear.
• Install Difficulty: 3/5 — Turn off all power and gas before servicing. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter, phone/camera to document wiring. Match all wire harness connectors carefully — incorrect wiring can damage the new board. If uncomfortable working near gas components, consult a licensed HVAC technician.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered specifically for the Carrier PY3PPA060130NA packaged unit. Always cross-reference the part number on your existing board's label before ordering to confirm fitment. Our HVAC parts specialists are available to verify compatibility — reach out before you order if you have any questions. In stock and ready to ship today.