OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model PY2PEB048130AA

This is the genuine OEM Carrier Direct Spark Ignition (DSI) Control Board, part number LH33WP002, factory-specified for the Carrier PY2PEB048130AA packaged gas/electric unit. The DSI control board serves as the brain of the heating system — it sequences the inducer motor, manages the spark ignition trial, monitors the flame sensor, and controls safety lockout logic. When this board fails, common symptoms include a no-heat condition, repeated ignition lockouts, failure to initiate a spark, or the system cycling off immediately after ignition. In many cases the board will flash a fault code indicating an ignition or proving failure before shutting down entirely.

• Specs: 460V application | Direct Spark Ignition (DSI) control type | OEM part number LH33WP002 | Supersedes LH33WP002A | Factory-matched timing and lockout parameters for Carrier PY-series packaged units
• OEM vs Generic: This is a genuine Carrier OEM board engineered to exact factory specifications. Aftermarket boards may use different timing sequences, mismatched relay ratings, or incompatible lockout logic — all of which can trigger nuisance faults or shorten system life. OEM is always the recommended choice for control boards.
• Install Difficulty: 3/5 — Disconnect power and confirm zero voltage before handling. Photograph all wiring harness connections before removal. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, smartphone for wiring photos. If fault codes are present, document them prior to replacement. Consult the unit's service manual for board mounting orientation and wire routing.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Fits Carrier model PY2PEB048130AA packaged gas/electric units. Also used across Carrier, Bryant, and Payne models in the 48, 574, 580, 581, 582, 583, 588, 589, and PY series — verify your OEM part number on the existing board label before ordering. Questions about fitment? Our parts specialists confirm compatibility before you buy.