OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model CP48P248P207010CP

This is the factory OEM Direct Spark Ignition (DSI) control board for the Carrier CP48P248P207010CP packaged heating and cooling unit. The DSI control board is the brain of your furnace section — it sequences the inducer motor, spark ignition, gas valve, and flame verification circuit in precise timing. When this board fails, you may experience a hard lockout with no ignition attempt, intermittent no-heat calls, fault codes indicating ignition failure, or a system that sparks but never proves flame and shuts down on rollout. Replacing with the correct OEM board ensures all timing parameters and safety lockout logic match factory specifications exactly.

• Specs: OEM Part Number LH33WP002 | Direct Spark Ignition (DSI) control | 24V control circuit compatible | Includes integrated fault code diagnostics | Factory-matched timing sequence for inducer pre-purge, trial for ignition, and post-purge
• OEM vs Generic: OEM control boards use the exact firmware and component ratings specified by Carrier engineering. Aftermarket boards may use approximate timing tolerances that can cause nuisance lockouts, improper flame sensing thresholds, or voided equipment warranties — particularly critical on packaged rooftop units where service access is costly.
• Install Difficulty: 3/5 — Requires disconnecting 120V power and 24V control wiring. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, phone or camera to photograph all wiring harness connections before removal. Label every connector. Allow capacitors to discharge fully before handling. Recommended for qualified HVAC technicians.
• Warranty: 1-year OEM factory warranty against defects. Orders placed before 3 PM EST ship same business day from our stocked warehouse.

Compatibility: This control board is the direct OEM replacement for Carrier model CP48P248P207010CP packaged units. Always verify the OEM part number LH33WP002 printed on your existing board's label before ordering to confirm fitment. If your existing board label is damaged or unreadable, our HVAC parts specialists can verify compatibility using your unit's full model and serial number. Order now — in stock and ships today.