OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model CP48P348P307510CP

This is the genuine OEM Direct Spark Ignition (DSI) control board for the Carrier CP48P348P307510CP packaged unit. The DSI control board orchestrates the entire heating sequence — managing inducer startup, spark ignition timing, flame sensing, gas valve activation, and safety lockout logic. When this board fails, common symptoms include a complete no-heat condition, repeated ignition lockouts, failure to advance through the heating sequence, or erratic system behavior such as short-cycling and unexpected shutdowns. Replacing the board with an exact OEM unit restores factory-programmed timing and safety logic that aftermarket alternatives may not accurately replicate.

• Specs: OEM Part Number LH33WP002 | Direct Spark Ignition (DSI) control board | Factory-matched ignition timing and lockout logic | Designed for Carrier CP48P348P307510CP packaged unit | Includes all terminal positions matching original wiring harness
• OEM vs Generic: This is a genuine Carrier OEM board programmed to exact factory specifications. Aftermarket control boards may feature slightly different lockout timing, trial-for-ignition periods, and safety thresholds — variations that can cause nuisance lockouts, voided equipment warranties, or undetected unsafe conditions. Always use OEM for DSI boards.
• Install Difficulty: 4/5 — Control board replacement requires safely disconnecting 120V and 24V wiring harnesses, careful documentation of all terminal connections, and verification of proper sequencing after installation. Tools needed: insulated screwdrivers (flathead and Phillips), needle-nose pliers, multimeter, and smartphone or camera to photograph all wiring before removal. Recommended for qualified HVAC technicians.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our stocked warehouse when ordered before cutoff.

Compatibility: Engineered specifically for the Carrier CP48P348P307510CP packaged gas/electric unit. Always verify OEM part number LH33WP002 against your unit's data plate and existing board label before ordering. Our HVAC parts specialists are available to confirm fitment prior to purchase. Order today — in stock and ships same business day.