{"product_id":"carrier-py1ppb048090nbaa-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY1PPB048090NBAA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY1PPB048090NBAA\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 PY1PPB048090NBAA\u003c\/strong\u003e packaged gas\/electric unit. As the brain of the heating system, this microprocessor-based board orchestrates combustion sequencing — controlling the spark igniter and gas valve, managing blower and indoor motor operation, monitoring flame sensing, and enforcing ignition trial timing and safety lockout. When this board fails, common symptoms include a no-heat condition, repeated ignition lockout faults, burners that light and immediately shut off, or erratic blower behavior that points directly to a board-level failure rather than a sensor or motor issue.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LH33WP003 (also replaces LH33WP003A) | Direct Spark Ignition (DSI) type | Microprocessor-based logic control | Factory-matched for Carrier PY1PPB048090NBAA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board — not an aftermarket substitute. OEM boards are pre-programmed with exact ignition trial timing, lockout thresholds, and blower delay profiles specific to your unit. Aftermarket boards may require jumper reconfiguration and can introduce nuisance lockouts or shortened component life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V control wiring harness and line-voltage connections. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, phone or camera to photograph wiring before removal. Always shut off gas supply and disconnect power at the disconnect box before servicing. A qualified HVAC technician is recommended for gas appliance board replacement.\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 3PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PY1PPB048090NBAA\u003c\/strong\u003e packaged unit. Verify your existing board's part number on the board label before ordering — this board also replaces the \u003cstrong\u003eLH33WP003A\u003c\/strong\u003e variant. If you are unsure of fitment, our team verifies compatibility before you order. In stock and ready to ship today — get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640793354611,"sku":"CARRIE-PY1PPB048090NBAA-CONTROL_BOARD-LH33WP003","price":379.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640793387379,"sku":"CARRIE-PY1PPB048090NBAA-CONTROL_BOARD-LH33WP003-GEN","price":333.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_9ceb0723-4bb2-427a-864b-38d1aa9b4c53.jpg?v=1775027952","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1ppb048090nbaa-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}