OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model CP48P248P209010CP

This is the factory OEM Direct Spark Ignition (DSI) control board, part number LH33WP002, designed as the direct replacement for the Carrier CP48P248P209010CP packaged unit. The DSI control board orchestrates the entire ignition sequence — managing inducer startup, spark ignition timing, flame sensing, gas valve actuation, and safety lockout logic. When this board fails, you may experience symptoms such as repeated ignition lockouts, no-heat calls despite a functioning thermostat, erratic burner cycling, or a complete failure to initiate the ignition sequence altogether.

• Specs: Direct Spark Ignition (DSI) control board | OEM Part No. LH33WP002 | 24V control circuit compatible | Factory-programmed ignition timing and lockout logic pre-loaded
• OEM vs Generic: This is a genuine OEM Carrier board — factory-programmed with exact ignition trial timing, lockout retry counts, and fault code logic specific to the CP48P248P209010CP. Aftermarket boards often use generalized firmware that can cause nuisance lockouts, improper flame proving delays, or void equipment warranties.
• Install Difficulty: 3/5 — Shut off all power and gas before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter, phone or camera to photograph all wiring harness connections prior to removal. Label connectors before disconnecting. Board swap is straightforward but requires careful attention to connector orientation and grounding tabs.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse. Packed securely to prevent damage in transit.

Compatibility: This board is factory-specified for the Carrier CP48P248P209010CP packaged gas/electric unit. Always verify the OEM part number on your existing board's label before ordering to confirm fitment. If you're unsure, our HVAC parts specialists can verify compatibility before your order ships — same-day if ordered before 3 PM local time.