{"product_id":"carrier-py3pna048130nb-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY3PNA048130NB","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3PNA048130NB\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 PY3PNA048130NB\u003c\/strong\u003e packaged rooftop unit. As the central intelligence of the heating system, this Integrated Gas Control (IGC) board orchestrates the entire ignition sequence — managing spark ignition, gas valve activation, combustion blower, and indoor fan motors while continuously monitoring flame sensing and safety lockout conditions. When this board fails, symptoms typically include a no-heat call with repeated ignition lockout, the unit attempting ignition then shutting down, or status LED fault codes indicating a control board fault. Replacing with the genuine OEM part restores factory-calibrated timing and full diagnostic capability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Direct Spark Ignition (DSI) \/ Integrated Gas Control (IGC) Board | OEM Part # \u003cstrong\u003eLH33WP003\u003c\/strong\u003e | Fits Carrier PY3PNA048130NB packaged rooftop units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This factory OEM board is manufactured to Carrier's exact original design standards, preserving full system compatibility, accurate fault-code diagnostics, and factory ignition timing. Aftermarket alternatives (such as ICM291) may omit nuanced timing calibrations and can void remaining equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires full system lockout\/tagout (LOTO) and discharge of control voltage before any board contact. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, smartphone to photograph all wiring connections and connector positions prior to removal. Recommend an HVAC-certified technician for rooftop unit service.\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 stocked warehouse — no backorder delays.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PY3PNA048130NB\u003c\/strong\u003e packaged rooftop gas\/electric unit. Verify your existing board's part number on the board label before ordering — superseded variant \u003cstrong\u003eLH33WP003A\u003c\/strong\u003e is also covered. If you have a related Bryant or ICP rooftop unit using the same board, contact our fitment team for confirmation. Questions about compatibility? Our HVAC parts specialists verify fitment before you order — reach out via chat or phone for fast answers.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640376807795,"sku":"CARRIE-PY3PNA048130NB-CONTROL_BOARD-LH33WP003","price":562.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640376840563,"sku":"CARRIE-PY3PNA048130NB-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_4f67ab6f-5313-4a42-8ac7-7da835516043.jpg?v=1775028157","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3pna048130nb-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}