OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model PY1PEB048130ABAA

This is the genuine OEM Carrier Direct Spark Ignition (DSI) Control Board, part number LH33WP002, factory-specified for the Carrier PY1PEB048130ABAA packaged gas/electric unit. The DSI control board is the command center of the heating system — it orchestrates the entire ignition sequence by controlling the spark igniter, monitoring the gas valve, proving flame via the flame sensor, and managing blower and inducer motor timing. When this board fails, the most common symptoms include: the system attempting ignition but going into hard lockout, no-heat calls that result in only cold air delivery, short-cycling after a brief heating attempt, or error codes flashing on the system indicating ignition failure.

• Part Specifications: OEM Part # LH33WP002 | Replaces: LH33WP002A | Direct Spark Ignition (DSI) microprocessor-based control | 460V system rated | Factory-matched logic and timing sequences
• OEM vs. Generic: This is a genuine Carrier factory part — not an aftermarket substitute. OEM boards carry exact firmware, relay ratings, and terminal configurations. Aftermarket boards may have mismatched timing cycles that cause nuisance lockouts, premature component wear, or voided equipment warranties.
• Install Difficulty: 3/5 — Requires shutting off gas and electrical supply before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, phone/camera to photograph all wiring harness connections before removal. Recommend a licensed HVAC technician for gas appliance board replacement.
• Warranty & Shipping: 1-year OEM factory warranty against defects. In stock and ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed as the direct OEM replacement for the Carrier PY1PEB048130ABAA packaged unit. Also fits select Carrier, Bryant, and Payne models in the 48, 574, 580, 581, 582, 583, 588, 589, and PY series — always verify your model and data plate before ordering. Our team is available to confirm fitment prior to purchase.