{"product_id":"carrier-py3ppa042060aa-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY3PPA042060AA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3PPA042060AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier Direct Spark Ignition (DSI) Control Board, part number \u003cstrong\u003eLH33WP003\u003c\/strong\u003e, factory-specified for the \u003cstrong\u003eCarrier PY3PPA042060AA\u003c\/strong\u003e packaged rooftop unit. \u003ca href=\"https:\/\/www.partstown.com\/carrier-hvac\/crrlh33wp003\"\u003eAs the system's central intelligence\u003c\/a\u003e, this microprocessor-based board orchestrates combustion sequencing, blower and indoor motor operation, spark ignition timing, flame sensing, and safety lockout — shutting down the system automatically if an unsafe condition is detected. Common failure symptoms include a hard lockout after ignition attempts, the unit starting then shutting off within seconds, no-heat calls that are not satisfied, or a complete loss of furnace operation with no error codes cycling through.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Direct Spark Ignition (DSI) Control Board | OEM Part Number: \u003cstrong\u003eLH33WP003\u003c\/strong\u003e | Also supersedes LH33WP003A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This genuine Carrier OEM board is factory-programmed with the exact ignition trial timing, flame-sensing thresholds, and lockout sequences required for the PY3PPA042060AA. Aftermarket boards may use generic timing profiles that cause nuisance lockouts or void equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires shutting off gas and electrical supply before servicing. Photograph all wiring harness connections before removal. Tools needed: nut driver set, needle-nose pliers, multimeter. Confirm all fault codes are cleared after installation. Professional installation recommended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct fit for the \u003cstrong\u003eCarrier PY3PPA042060AA\u003c\/strong\u003e packaged rooftop unit. Always verify the OEM part number on your existing board's label before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions. \u003cstrong\u003eOrder now and we'll ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640358850931,"sku":"CARRIE-PY3PPA042060AA-CONTROL_BOARD-LH33WP003","price":367.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640358883699,"sku":"CARRIE-PY3PPA042060AA-CONTROL_BOARD-LH33WP003-GEN","price":323.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_f742d606-6b22-47c0-913c-22ecc8fb22b4.jpg?v=1775028196","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3ppa042060aa-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}