OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model PY2PEB042060NB

This is the genuine OEM Carrier Direct Spark Ignition (DSI) Control Board, part number LH33WP002, factory-specified for the Carrier PY2PEB042060NB packaged gas/electric unit. The DSI control board serves as the nerve center of your heating system — it sequences the inducer motor, manages the direct spark ignition event, monitors the flame sensor signal, and governs all safety lockout logic. When this board fails, common symptoms include a complete no-heat condition, repeated ignition lockouts, intermittent heating cycles, or failure to prove flame even when all other components test good. Replacing it with the correct OEM board restores factory-programmed timing and safety thresholds that aftermarket boards often cannot replicate precisely.

• Specs: 460V rated DSI ignition control | Direct Spark Ignition sequence | Replaces superseded part LH33WP002A | Factory-matched timing and lockout logic for Carrier PY-series packaged units
• OEM vs Generic: OEM boards carry Carrier-programmed ignition timing, flame-proving windows, and safety lockout delays. Generic or off-brand boards may use different timing tolerances, leading to nuisance lockouts, premature shutdowns, or unverified safety behavior — a critical concern on gas-fired equipment.
• Install difficulty: 3/5 — Requires disconnecting 120V and 24V wiring harnesses, labeling all terminals before removal, and transferring any jumper settings from the old board. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, camera for wiring documentation. Always disconnect power before servicing.
• Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse when ordered by cutoff time.

Compatibility: Designed for the Carrier PY2PEB042060NB packaged gas/electric 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 prior to purchase. Order today and ship today — get your system back online fast.