{"product_id":"carrier-py3ppa048130ab-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY3PPA048130AB","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3PPA048130AB\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified \u003cstrong\u003eDirect Spark Ignition (DSI) Control Board\u003c\/strong\u003e for the \u003cstrong\u003eCarrier PY3PPA048130AB\u003c\/strong\u003e packaged rooftop gas\/electric unit. As the brain of the heating system, this microprocessor-based board orchestrates the entire combustion sequence — it controls the spark igniter, gas valve, combustion blower, and indoor fan motor while continuously monitoring flame sensing, safety inputs, and timed lockout logic. When this board fails, symptoms include no-heat calls, ignition lockout fault codes, failure to advance past the trial-for-ignition stage, or erratic blower behavior that persists even after resetting the system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e LH33WP003 (also supersedes LH33WP003A) | Factory-direct Carrier replacement | Microprocessor-based DSI logic board\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM board is programmed to Carrier's exact timing sequences, flame-sense thresholds, and lockout parameters for the PY3PPA048130AB. Aftermarket boards may use generalized DSI logic that can cause nuisance lockouts or fail to meet unit-specific safety timing windows.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Involves high-voltage wiring and gas-system safety interlocks. Disconnect power and gas before servicing. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, multimeter, smartphone to photograph existing wiring. Recommend licensed HVAC technician for this repair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the direct OEM replacement for \u003cstrong\u003eCarrier model PY3PPA048130AB\u003c\/strong\u003e packaged rooftop units. Always verify your existing board's part number against LH33WP003 or LH33WP003A before ordering. Not sure? Our HVAC parts specialists confirm fitment before you buy — contact us with your full model and serial number.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640349413747,"sku":"CARRIE-PY3PPA048130AB-CONTROL_BOARD-LH33WP003","price":368.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640349446515,"sku":"CARRIE-PY3PPA048130AB-CONTROL_BOARD-LH33WP003-GEN","price":324.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_5aed96b5-97d3-46c8-b432-7bcd8fe2061e.jpg?v=1775028214","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3ppa048130ab-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}