OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model PY2PEB048090AB

This is the factory OEM Direct Spark Ignition (DSI) Control Board for the Carrier PY2PEB048090AB packaged unit. The DSI control board is the central logic hub of the heating system — it sequences the inducer motor, spark igniter, gas valve, and flame sense circuit on every call for heat. When this board fails, common symptoms include a complete no-heat condition, continuous ignition lockout, erratic burner cycling, or fault codes indicating failed ignition trials. Replacing it with the correct OEM board ensures all timing sequences, safety thresholds, and diagnostic LED codes match factory specifications exactly.

• Specs: OEM Part Number LH33WP002 | Direct Spark Ignition (DSI) control board | 24V control circuit compatible | Factory-programmed ignition trial timing and lockout logic
• OEM vs Generic: This is the genuine OEM board — factory-programmed with exact ignition trial timing, lockout retry counts, and fault code sequences. Aftermarket boards may use generic firmware that causes nuisance lockouts, void equipment warranties, or fail safety certifications.
• Install Difficulty: 3/5 — Disconnect power and gas before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone or camera to photograph all wiring harness connections prior to removal. Label every connector. Reattach wiring per the unit's wiring diagram located inside the access panel.
• Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier model PY2PEB048090AB packaged units equipped with Direct Spark Ignition heating. Always verify the OEM part number on your existing board's label before ordering to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you buy — order with confidence and get back up and running fast.