{"product_id":"carrier-py1rea090180acwa-control-board-cyc67o","title":"OEM Carrier DSI Control Board LH33WP002 for PY1REA090180ACWA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model PY1REA090180ACWA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier Direct Spark Ignition (DSI) Control Board, part number \u003cstrong\u003eLH33WP002\u003c\/strong\u003e, factory-specified for the \u003cstrong\u003eCarrier PY1REA090180ACWA\u003c\/strong\u003e packaged unit. The DSI control board serves as the central intelligence of the heating system — it manages the ignition sequence, monitors flame presence, sequences the inducer and blower motors, and enforces safety lockout protocols. When this board fails, you may experience a complete no-heat condition, repeated ignition lockout faults, erratic burner cycling, or a system that sparks but never lights. Because every output on this board is safety-critical, an exact OEM replacement is strongly recommended.\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 logic and timing sequences\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM DSI boards use manufacturer-calibrated ignition timing, flame-sensing thresholds, and lockout logic. Aftermarket alternatives often use generalized firmware that can cause nuisance lockouts, improper retry timing, or voided equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect all power before beginning. Tools needed: nut driver set, needle-nose pliers, phone or camera to photograph all connector positions before removal. Label every harness connector and match terminal-for-terminal. If fault codes are stored, record them before disconnecting power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct drop-in replacement for the \u003cstrong\u003eCarrier PY1REA090180ACWA\u003c\/strong\u003e packaged unit. Always verify the part number printed on your existing board before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640680927603,"sku":"CARRIE-PY1REA090180ACWA-CONTROL_BOARD-LH33WP002","price":499.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640680960371,"sku":"CARRIE-PY1REA090180ACWA-CONTROL_BOARD-LH33WP002-GEN","price":439.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP002_eee08e3f-e707-4f0c-9517-7fcdbaee43ba.jpg?v=1775027717","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1rea090180acwa-control-board-cyc67o","provider":"National HVAC Parts","version":"1.0","type":"link"}