{"product_id":"carrier-py3ppa042060na-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY3PPA042060NA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3PPA042060NA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM \u003cstrong\u003eDirect Spark Ignition (DSI) Control Board\u003c\/strong\u003e for the \u003cstrong\u003eCarrier PY3PPA042060NA\u003c\/strong\u003e packaged gas\/electric unit. The DSI control board is the brain of your system's ignition sequence — it orchestrates combustion airflow, spark ignition, flame sensing, gas valve operation, and blower motor staging. When this board fails, the unit will typically enter a hard lockout after a failed ignition attempt, leaving the system with no heat. Other symptoms include erratic cycling, failure to prove flame, or a complete loss of all control functions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LH33WP003 | Direct Spark Ignition (DSI) Control Board | Factory OEM Carrier replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM boards carry factory-programmed timing sequences, lockout thresholds, and fault codes specific to your Carrier unit. Aftermarket boards may use universal timing that accelerates heat exchanger wear or causes nuisance lockouts — always specify OEM for DSI applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the breaker and gas supply before beginning. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, multimeter, phone camera (photograph all wiring harness positions before removal). Label each connector. Board replacement typically takes 45–60 minutes for an experienced technician.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier PY3PPA042060NA\u003c\/strong\u003e packaged unit. Also cross-references with select Bryant and Payne rooftop units that originally specified the LH33WP003 board — verify your unit's data plate and wiring diagram before ordering. If you have any questions about fitment, our HVAC parts specialists confirm compatibility before your order ships.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640358031731,"sku":"CARRIE-PY3PPA042060NA-CONTROL_BOARD-LH33WP003","price":373.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640358064499,"sku":"CARRIE-PY3PPA042060NA-CONTROL_BOARD-LH33WP003-GEN","price":328.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_0e360207-b18a-4bd8-ab1f-791424043219.jpg?v=1775028198","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3ppa042060na-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}