OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY2PPB060130AB

This is the factory OEM Direct Spark Ignition (DSI) control board for the Carrier PY2PPB060130AB packaged gas/electric unit. As the brain of your system's combustion sequence, this microprocessor-based board controls the spark igniter, gas valve, combustion blower, and indoor fan motor — while continuously monitoring timing, trial-for-ignition cycles, flame sensing, and safety lockout conditions. When this board fails, you'll typically experience a no-heat condition, repeated ignition lockout, or fault codes indicating a failed ignition trial, even when the igniter and gas valve test good individually.

• OEM Part Number: LH33WP003 (also supersedes LH33WP003A) | Direct Spark Ignition (DSI) type | Microprocessor-based logic control | Factory-matched timing and lockout parameters for Carrier PY2PPB060130AB
• OEM vs Generic: This is a genuine Carrier OEM board — factory-calibrated ignition trial timing, flame-sensing sensitivity, and lockout sequences match your unit's original design exactly. Aftermarket boards (e.g., ICM291) may require minor wiring adaptation and can differ in lockout reset behavior.
• Install Difficulty: 3/5 — Requires documenting all connector positions before removal. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone or camera for wiring photos. Always shut off power and gas before beginning. Recommend resetting fault history after installation.
• Warranty: 1-year OEM factory warranty against manufacturing defects. In-stock and ships same business day from our climate-controlled warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier model PY2PPB060130AB packaged gas/electric units. This board also supersedes the LH33WP003A suffix variant. Verify your existing board's part number on the label before ordering. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you buy — no guesswork required.