OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model PY1PEB048115ABAA

This is the genuine OEM Direct Spark Ignition (DSI) control board for the Carrier PY1PEB048115ABAA packaged gas/electric unit. The DSI control board is the brain of your system's ignition sequence — it manages spark timing, monitors flame signal, governs gas valve operation, and coordinates the inducer and blower motors. When this board fails, symptoms typically include a hard lockout with no ignition attempt, repeated ignition cycles without establishing flame, an absent or missing spark signal, or a furnace that runs but immediately shuts down on a safety fault. Replacing with the genuine OEM board ensures all timing parameters, fault codes, and safety lockout logic match factory specifications exactly.

• Part Number: LH33WP002 (also supersedes LH33WP002A) | Application: Direct Spark Ignition (DSI) | Voltage: 460V | Genuine Carrier OEM replacement
• OEM vs Generic: The OEM LH33WP002 board uses factory-calibrated spark timing and flame-sensing thresholds. Aftermarket boards may use generalized logic that can cause nuisance lockouts, improper gas valve timing, or voided equipment warranties — always specify OEM on safety-critical ignition controls.
• Install Difficulty: 4/5 — Disconnect all power before beginning. Label all wire harness connections with tape before removal. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone camera for wiring documentation. Confirm all fault codes are cleared after installation. Professional installation recommended for gas-fired equipment.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse in original manufacturer packaging.

Compatibility: Engineered as the factory-specified ignition control board for the Carrier PY1PEB048115ABAA packaged unit. Also used across Carrier, Bryant, and Payne models in the 48, 574, 580, 581, 582, 583, 588, 589, and PY series — verify your unit's data plate and existing part number before ordering. Our fitment team is available to confirm compatibility before you buy.