OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model CP48P548P505010CP

This is the factory OEM Direct Spark Ignition (DSI) control board for the Carrier CP48P548P505010CP packaged heating and cooling unit. The DSI control board serves as the central brain of the gas heating sequence — managing ignition timing, flame supervision, inducer motor operation, and safety lockout logic. When this board fails, common symptoms include a complete no-heat condition, repeated ignition lockouts, erratic cycling, or fault codes indicating ignition failure even when the gas valve, igniter, and flame sensor test as functional.

• Specs: Direct Spark Ignition (DSI) control board | OEM Part Number: LH33WP002 | 24V control circuit compatible | Factory-programmed ignition timing and lockout sequences for Carrier CP48P548P505010CP packaged units
• OEM vs Generic: This is a genuine OEM Carrier board manufactured to exact factory specifications. Aftermarket boards frequently ship with incorrect ignition timing delays, incompatible lockout logic, or mismatched terminal layouts — all of which can cause nuisance lockouts, unsafe operation, or premature component failure. OEM is always the recommended replacement for control boards.
• Install Difficulty: 3/5 — Requires shutting off both gas supply and electrical power before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, phone or camera to photograph all wiring harness connections before removal. Each connector is typically keyed, but documenting wiring orientation before disconnecting the old board is strongly advised. If fault codes are present, record them prior to board removal for diagnostic reference.
• Warranty: 1-year OEM manufacturer warranty. In-stock units ship the same business day from our warehouse.

Compatibility: This board is the factory-specified replacement for Carrier model CP48P548P505010CP packaged units equipped with Direct Spark Ignition systems. Always verify OEM part number LH33WP002 against your unit's existing board label and data plate before ordering. Our fitment team is available to confirm compatibility before you purchase — don't guess on a control board. Order today and your part ships same business day.