OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model PY1PEA036060ADBA

This is the genuine OEM Carrier Direct Spark Ignition (DSI) Control Board, part number LH33WP002, factory-specified for the Carrier PY1PEA036060ADBA packaged unit. The DSI control board serves as the central command hub of your heating system — sequencing the ignition trial, monitoring the flame sensor signal, managing the inducer and gas valve, and triggering safety lockouts when fault conditions are detected. When this board fails, common symptoms include a complete no-heat condition, repeated ignition lockout faults, erratic cycling, or unresponsive system behavior even when thermostat calls for heat are present.

• Specs: Direct Spark Ignition (DSI) control board | 460V application | OEM part number LH33WP002 | Replaces legacy part LH33WP002A | Factory-matched to Carrier PY-series packaged unit logic
• OEM vs Generic: This is a genuine Carrier OEM board — not an aftermarket clone. OEM boards carry exact firmware, relay ratings, and timing sequences engineered for your unit. Aftermarket boards may use mismatched lockout timing or relay amperage, risking nuisance shutdowns or component damage.
• Install difficulty: 4/5 — Control board replacement requires disconnecting 120V and 24V wiring harnesses, documenting all terminal positions before removal, and verifying proper grounding post-install. Recommended tools: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, phone/camera for wiring documentation. A qualified HVAC technician is strongly recommended for this repair.
• Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY1PEA036060ADBA packaged unit. This board is also used across Carrier, Bryant, and Payne models in the 48, 574, 580, 581, 582, 583, 588, 589, and PY series — always verify your OEM part number on the existing board's label before ordering. Have questions? Our HVAC parts specialists confirm fitment before you buy — contact us today and get your system back online fast.