OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model PY1PEA036080ACBA

This is the genuine OEM Carrier Direct Spark Ignition (DSI) Control Board, part number LH33WP002, factory-specified for the Carrier PY1PEA036080ACBA packaged unit. The DSI control board serves as the brain of the heating sequence — it manages ignition timing, monitors flame sense feedback, controls the inducer and gas valve, and sequences the blower motor. When this board fails, the unit will typically enter a hard lockout after failed ignition attempts, show a blinking fault code, or produce no heat at all despite the thermostat calling for it.

• Specs: Direct Spark Ignition (DSI) control board | OEM part number LH33WP002 | Factory-matched to Carrier PY1PEA036080ACBA packaged unit | 460V ignition control application
• OEM vs Generic: This is a genuine OEM Carrier board — not an aftermarket substitute. OEM boards retain original firmware logic, precise ignition timing, and factory-calibrated safety lockout thresholds that generic boards often cannot replicate, protecting your compressor and heat exchanger from damage caused by mis-timed ignition sequences.
• Install difficulty: 4/5 — Requires disconnecting 24V and line-voltage connectors, photographing all wiring harnesses before removal, and verifying fault codes before and after replacement. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always shut off power and gas supply before servicing. Recommend licensed HVAC technician for installation.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before the cutoff.

Compatibility: Engineered as a direct OEM replacement for the Carrier PY1PEA036080ACBA packaged unit. Always cross-reference your unit's data plate and existing board part number before ordering to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you purchase — reach out before you order and we'll confirm the right fit.