{"product_id":"carrier-py3gna060115ab-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY3GNA060115AB","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3GNA060115AB\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 PY3GNA060115AB\u003c\/strong\u003e packaged rooftop unit. The DSI control board serves as the central nervous system of the heating circuit — it orchestrates spark ignition sequencing, gas valve activation, combustion blower operation, indoor fan motor staging, flame sensing, and safety lockout logic. When this board fails, common symptoms include a furnace that attempts ignition but locks out, a unit stuck in continuous trial-for-ignition, no-heat calls with no fault response, or erratic blower behavior that cannot be resolved by thermostat adjustments.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Direct Spark Ignition (DSI) Integrated Furnace Control (IFC) Board | OEM Part# \u003cstrong\u003eLH33WP003\u003c\/strong\u003e | Fits Carrier PY3GNA060115AB packaged rooftop units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board — not an ICM aftermarket substitute. OEM boards preserve factory timing sequences, lockout thresholds, and diagnostic LED fault codes. Aftermarket boards may introduce timing mismatches that trigger nuisance lockouts or mask true fault conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power at the disconnect and verify zero voltage before handling. Tools needed: nut driver set, needle-nose pliers, multimeter, phone camera (photograph all wiring harness connections before removal). Note and clear any existing fault codes prior to 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 — in stock and ready to go.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered and factory-matched for the \u003cstrong\u003eCarrier PY3GNA060115AB\u003c\/strong\u003e packaged rooftop unit. Verify your unit's data plate matches part number LH33WP003 before ordering. Our team is available to confirm fitment — don't guess on a control board. Order now and this ships today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640464986483,"sku":"CARRIE-PY3GNA060115AB-CONTROL_BOARD-LH33WP003","price":562.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640465019251,"sku":"CARRIE-PY3GNA060115AB-CONTROL_BOARD-LH33WP003-GEN","price":494.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_f5526a54-cd97-4422-bd85-56e54072b19f.jpg?v=1775028099","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3gna060115ab-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}