OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model PY3PEA036060AB

This is the OEM factory-specified Direct Spark Ignition (DSI) Control Board (part number LH33WP002) for the Carrier PY3PEA036060AB packaged unit. The DSI control board is the brain of your unit's heating system — it sequences the entire ignition cycle, monitors safety inputs such as the pressure switch and high-limit, commands the gas valve, and drives the direct spark igniter. When this board fails, common symptoms include a hard lockout with no ignition attempt, intermittent no-heat calls, failure to prove flame, or the unit cycling on and off without ever completing a heat sequence. Replacing with a genuine OEM board ensures all timing parameters, safety thresholds, and fault-code logic exactly match factory specifications.

• Specs: Direct Spark Ignition (DSI) control board | OEM Part No. LH33WP002 | 24V control circuit compatible | Factory-matched ignition timing and safety lockout logic for Carrier PY3PEA036060AB
• OEM vs Generic: Genuine OEM boards carry factory-calibrated ignition timing and safety lockout sequences. Aftermarket boards can introduce mistimed spark events or altered fault thresholds, risking nuisance lockouts or, worse, unsafe operation.
• Install difficulty: 3/5 — Turn off all power and gas before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter. Photograph all wiring harness connections before disconnecting. Transfer wires one at a time to avoid mis-wiring. Verify all safety switch connections are secure before restoring power.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: This board is the direct OEM replacement for Carrier model PY3PEA036060AB. Always verify the part number on your existing board's label before ordering. If you're unsure of fitment, our HVAC parts specialists are available to confirm compatibility before you buy — ensuring you get the right board the first time.