{"product_id":"carrier-py3pea042090aa-control-board-cyc67o","title":"OEM Carrier DSI Control Board LH33WP002 for PY3PEA042090AA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model PY3PEA042090AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier Direct Spark Ignition (DSI) Control Board (part number \u003cstrong\u003eLH33WP002\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier PY3PEA042090AA\u003c\/strong\u003e packaged gas\/electric unit. The DSI control board serves as the central command module for the heating sequence — coordinating the inducer motor, gas valve, spark igniter, and flame sensor in precise timed stages. When this board fails, the unit will typically enter a hard lockout, refuse to initiate the ignition sequence, short-cycle on startup, or display a fault code indicating an ignition or control failure. Replacing it with the correct OEM board restores factory timing logic and full diagnostic LED functionality.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Direct Spark Ignition (DSI) control board | 460V application | OEM part number LH33WP002 | Replaces legacy part LH33WP002A | Factory-matched timing sequences for inducer pre-purge, spark trial, and flame proving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM control boards use factory-calibrated ignition timing and lockout logic. Aftermarket boards often ship with generic timing profiles that can cause nuisance lockouts, improper gas valve sequencing, and voided equipment warranties — especially critical on 460V commercial packaged units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect all power before beginning. Tools needed: #2 Phillips and flathead screwdrivers, 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, phone camera (photograph all wiring harness connections before removal). Note: 460V equipment — verify power is fully isolated at the disconnect and breaker before touching any terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePY3PEA042090AA\u003c\/strong\u003e 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 model's data plate and existing part number before ordering. Our fitment team is available to confirm compatibility prior to purchase.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640422617459,"sku":"CARRIE-PY3PEA042090AA-CONTROL_BOARD-LH33WP002","price":512.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640422650227,"sku":"CARRIE-PY3PEA042090AA-CONTROL_BOARD-LH33WP002-GEN","price":451.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP002_0bdd5e53-ad4c-4568-bf27-56b031a58a1d.jpg?v=1775027793","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3pea042090aa-control-board-cyc67o","provider":"National HVAC Parts","version":"1.0","type":"link"}