OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model N6A48NG480215

This is the OEM factory-specified Direct Spark Ignition (DSI) control board for the Carrier N6A48NG480215 packaged gas/electric unit. The DSI control board serves as the brain of the heating system, orchestrating the complete ignition sequence — from inducer motor start and pressure switch verification through spark ignition, flame sensing, and burner steady-state operation. When this board fails, common symptoms include a complete no-heat condition, repeated ignition lockout faults, erratic burner cycling, or failure to advance past the inducer pre-purge stage. Replacing the board with an exact OEM unit restores factory-programmed timing and safety lockout logic.

• Specs: Direct Spark Ignition (DSI) control board | OEM Part Number: LH33WP002 | Factory-matched control voltages and timing sequences | Compatible with 24V control circuit architecture standard to Carrier packaged units
• OEM vs Generic: OEM boards carry factory-programmed ignition timing, precise lockout thresholds, and certified safety logic. Aftermarket boards may use generic timing that causes nuisance lockouts, voided warranties, or unsafe ignition delays — always specify OEM for gas-fired equipment.
• Install difficulty: 3/5 — Requires disconnecting 120V and 24V wiring harnesses and mounting screws. Tools needed: Phillips and flathead screwdrivers, needle-nose pliers, phone camera to document wiring before removal. Power must be fully disconnected at the disconnect box before servicing. Gas ignition boards should be installed by a qualified HVAC technician.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our stocked warehouse when ordered before cutoff.

Compatibility: Designed specifically for the Carrier N6A48NG480215 packaged gas/electric unit. Verify OEM part number LH33WP002 against your existing board label and your unit's data plate before ordering. If you are unsure of fitment, our HVAC parts specialists are available to confirm compatibility before you purchase — no guesswork required.