{"product_id":"carrier-py3gna060090ab-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY3GNA060090AB","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3GNA060090AB\u003c\/h1\u003e\u003cp\u003eThis OEM Direct Spark Ignition (DSI) control board is the factory-specified replacement for the \u003cstrong\u003eCarrier PY3GNA060090AB\u003c\/strong\u003e packaged gas unit. As the brain of the heating system, the DSI control board manages combustion sequencing, blower and indoor motor operation, spark ignition timing, flame sensing, and safety lockout logic. When this board fails, common symptoms include a furnace that won't ignite, a system that locks out after one or two ignition attempts, erratic blower behavior, or a unit that powers on but produces no heat whatsoever.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LH33WP003 | OEM Carrier Direct Spark Ignition (DSI) Control Board | Microprocessor-based design | Factory-matched to \u003cstrong\u003ePY3GNA060090AB\u003c\/strong\u003e specifications\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 preserve factory-calibrated ignition timing, flame-sensing thresholds, and lockout sequences. Aftermarket boards can introduce nuisance lockouts or void equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V control wiring harnesses, gas valve connections, and flame sensor leads. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always cut power at the disconnect and photograph all wiring before removal. Professional installation recommended.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the \u003cstrong\u003eCarrier PY3GNA060090AB\u003c\/strong\u003e packaged gas unit. Verify your existing board's part number (LH33WP003 or LH33WP003A) against your unit's data plate before ordering. This board also cross-references with select Bryant and Day \u0026amp; Night rooftop units sharing the same DSI ignition platform. Not sure if this is the right board? Our HVAC parts specialists confirm fitment before every order — reach out before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640467935603,"sku":"CARRIE-PY3GNA060090AB-CONTROL_BOARD-LH33WP003","price":372.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640467968371,"sku":"CARRIE-PY3GNA060090AB-CONTROL_BOARD-LH33WP003-GEN","price":327.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_3b030568-6093-46a4-b668-c4d6ac7d8b16.jpg?v=1775028096","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3gna060090ab-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}