{"product_id":"carrier-py3pna042060na-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY3PNA042060NA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3PNA042060NA\u003c\/h1\u003e\u003cp\u003eThis is the OEM-specified \u003cstrong\u003eDirect Spark Ignition (DSI) Control Board\u003c\/strong\u003e for the \u003cstrong\u003eCarrier PY3PNA042060NA\u003c\/strong\u003e packaged gas\/electric unit. The DSI control board is the brain of the heating system — it sequences the inducer motor, spark igniter, and gas valve while continuously monitoring the flame sensor and all safety circuits. When this board fails, common symptoms include a complete no-heat condition, repeated ignition lockout faults, the furnace starting and then shutting off within seconds, or the system failing to progress past the inducer pre-purge stage. A burned, cracked, or fault-coded board must be replaced to restore reliable heating operation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LH33WP003 (also replaces LH33WP003A) | OEM Carrier DSI ignition control board | Microprocessor-based design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM board is factory-programmed with exact ignition trial timing, flame-sensing thresholds, and lockout sequences specific to your Carrier unit. Aftermarket boards may use relaxed tolerances that cause nuisance lockouts or fail to detect unsafe flame conditions reliably.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power and gas before beginning. Photograph all wiring harness connections before removal. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, phone\/camera. Verify all plug-and-play connectors seat fully. Recommended to clear any fault codes after installation.\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 warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Directly fits Carrier model \u003cstrong\u003ePY3PNA042060NA\u003c\/strong\u003e packaged rooftop\/gas-electric units. Also replaces part number LH33WP003A. Verify your existing board's part number against your unit's data plate before ordering. Not sure if this board fits your exact configuration? Our HVAC parts specialists confirm fitment before you buy — contact us before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640386048371,"sku":"CARRIE-PY3PNA042060NA-CONTROL_BOARD-LH33WP003","price":373.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640386081139,"sku":"CARRIE-PY3PNA042060NA-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_97186d9e-1d8f-4ebc-b659-c27170620b20.jpg?v=1775028136","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3pna042060na-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}