{"product_id":"carrier-py1rja060074aawa-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY1RJA060074AAWA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY1RJA060074AAWA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier Direct Spark Ignition (DSI) control board, part number \u003cstrong\u003eLH33WP003\u003c\/strong\u003e, engineered as the factory-specified replacement for the \u003cstrong\u003eCarrier PY1RJA060074AAWA\u003c\/strong\u003e rooftop unit. As the brain of your heating system, this Integrated Gas Control (IGC) board orchestrates every stage of the ignition sequence — from inducer startup and spark ignition through gas valve activation and steady-state flame monitoring. When this board fails, the most common symptoms include a complete no-heat condition, ignition lockout after one or more failed ignition attempts, erratic blower behavior, or the system cycling off immediately after startup without establishing a flame.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Direct Spark Ignition (DSI) microprocessor-based control | Manages spark igniter, gas valve, blower motor, and inducer motor | Integrated LED fault-code diagnostics for rapid troubleshooting | Factory-matched to Carrier PY1RJA060074AAWA rooftop unit specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM board is manufactured to Carrier's exact original design standards, ensuring full pin-for-pin compatibility, precise timing sequences, and preserved system safety lockouts. Aftermarket boards may deviate in ignition timing or lockout logic, risking nuisance trips or reduced safety margins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V and line-voltage wiring harnesses. Always shut off power at the disconnect and tag-out before servicing. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, and a multimeter. Photograph all wiring connections before removal. Recommend verifying 24V control circuit integrity after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse. Includes original Carrier packaging.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PY1RJA060074AAWA\u003c\/strong\u003e commercial rooftop unit. This board also fits a range of Carrier and Bryant packaged rooftop units sharing the LH33WP003 specification — verify your unit's data plate and existing board part number before ordering. Our HVAC parts specialists are available to confirm fitment at no charge. \u003cstrong\u003eOrder now — in stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640671064435,"sku":"CARRIE-PY1RJA060074AAWA-CONTROL_BOARD-LH33WP003","price":562.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640671097203,"sku":"CARRIE-PY1RJA060074AAWA-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_0a73b6b4-eb6a-4e1e-aa9f-9568523c3dcc.jpg?v=1775027968","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1rja060074aawa-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}