OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY1PPB060130AAAA

This is the genuine OEM Direct Spark Ignition (DSI) control board for the Carrier PY1PPB060130AAAA packaged gas/electric unit. The DSI control board is the nerve center of your furnace's ignition sequence — it manages the inducer motor, direct spark igniter, gas valve, and flame verification signal. When this board fails, symptoms typically include a no-heat condition, repeated ignition lockouts, fault codes on the control panel, or a burner that lights briefly then shuts down. Replacing the board with a factory-original OEM unit ensures the precise timing and safety logic your system was engineered to rely on.

• Specs: Direct Spark Ignition (DSI) control | OEM Part Number: LH33WP003 | Factory-matched for Carrier PY1PPB060130AAAA | Controls inducer, spark, gas valve, and flame rod circuit
• OEM vs Generic: OEM boards retain factory-calibrated ignition timing, lockout sequencing, and fault-code logic. Aftermarket boards may use generic timing that causes nuisance lockouts, premature gas valve wear, or voided equipment warranties.
• Install Difficulty: 3/5 — Requires disconnecting 24V and line-voltage harnesses. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone camera (photograph all wiring before removal). Always shut off gas supply and main power before servicing. A multimeter is recommended to verify 24V control circuit before and after installation.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered as a direct drop-in replacement for Carrier model PY1PPB060130AAAA packaged gas/electric units. Confirm your existing board's part number (LH33WP003) matches the label on your installed board before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you buy — no guesswork.