{"product_id":"carrier-py3ppa036060na-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 — PY3PPA036060NA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3PPA036060NA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM \u003cstrong\u003eCarrier LH33WP003\u003c\/strong\u003e Direct Spark Ignition (DSI) Control Board — the factory-specified replacement for the \u003cstrong\u003eCarrier PY3PPA036060NA\u003c\/strong\u003e packaged rooftop unit. As the central intelligence of your heating system, this board orchestrates spark ignition sequencing, gas valve activation, combustion blower control, indoor fan motor timing, flame sensing, and safety lockout logic. When it fails, symptoms include a system stuck in lockout after an ignition attempt, no-heat calls with no spark at the burner, erratic blower behavior, or continuous fault LED codes with no successful ignition cycle.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Direct Spark Ignition (DSI) Integrated Circuit Control Board | OEM Part# \u003cstrong\u003eLH33WP003\u003c\/strong\u003e | Manufacturer: Carrier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This genuine OEM board is factory-programmed to Carrier's original timing and safety thresholds. Aftermarket boards (such as the ICM291) can substitute in a pinch but may require reconfiguration and often carry shorter warranties — OEM ensures exact fit, certified safety logic, and full system compatibility out of the box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Suitable for qualified HVAC technicians. De-energize and lockout\/tagout the unit before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter for 24V control circuit verification, and a phone camera to document all wiring harness connections before disconnecting. Clear all fault codes after installation and run a full ignition cycle test.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against manufacturing 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 Engineered for the \u003cstrong\u003eCarrier PY3PPA036060NA\u003c\/strong\u003e packaged rooftop unit. This DSI board also fits a range of Carrier and Bryant commercial rooftop models that share the LH33WP003 board platform — verify your unit's data plate and existing board part number before ordering. Our team is available to confirm fitment. \u003cstrong\u003eOrder today and get same-day shipping\u003c\/strong\u003e — most in-stock orders ship within hours.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640362619251,"sku":"CARRIE-PY3PPA036060NA-CONTROL_BOARD-LH33WP003","price":450.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640362652019,"sku":"CARRIE-PY3PPA036060NA-CONTROL_BOARD-LH33WP003-GEN","price":396.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_e9d0b859-7a0b-48fa-a383-9509da1a06d0.jpg?v=1775028285","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3ppa036060na-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}