OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model PY2PEB048130AB

This is the factory OEM Direct Spark Ignition (DSI) Control Board for the Carrier PY2PEB048130AB packaged gas/electric unit, sold under part number LH33WP002. The DSI control board is the operational brain of your heating system — it sequences the entire ignition cycle by commanding the induced draft motor, firing the spark igniter, opening the gas valve, verifying flame via the flame sensor rod, and staging the blower motor on and off. When this board fails, the most common symptoms include a hard lockout with no ignition attempt, the unit lighting and immediately shutting down (false flame sense or sensor fault), intermittent heating with unexplained error codes, or a complete loss of heating function with the inducer motor not energizing at all.

• Part Number: LH33WP002 (also supersedes LH33WP002A) | Factory-authorized OEM replacement for Carrier PY2PEB048130AB packaged units
• OEM vs. Generic: This is a genuine Carrier OEM board — not an aftermarket clone. OEM boards preserve all factory timing sequences, safety lockout logic, and are pre-calibrated to exact factory tolerances, eliminating compatibility guesswork and callback risk for contractors.
• Install Difficulty: 3/5 — Board replacement requires disconnecting 120V line voltage. Always shut off power at the disconnect and confirm zero voltage with a multimeter before handling. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, phone/camera (photograph all wiring harness connections before removal). Recommend checking inducer, gas valve, and flame sensor before condemning the board.
• Warranty & Shipping: Backed by Carrier's OEM parts warranty. In stock and ships same business day from NationalHVACParts.com when ordered before 3 PM local time.

Compatibility: Designed for the Carrier PY2PEB048130AB packaged gas/electric unit. This board is also used across multiple Carrier, Bryant, and Payne packaged and rooftop models in the 48, 574, 580, 581, 582, 583, 588, 589, and PY series — verify your unit's data plate part number before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you purchase — no guesswork, no returns.