{"product_id":"carrier-py3ppa060130aa-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY3PPA060130AA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3PPA060130AA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM Direct Spark Ignition (DSI) control board for the \u003cstrong\u003eCarrier PY3PPA060130AA\u003c\/strong\u003e packaged rooftop unit. As the brain of the heating system, this microprocessor-based board orchestrates every stage of the ignition sequence — from pre-purge and spark ignition to gas valve activation, flame sensing, blower motor control, and safety lockout. When this board fails, common symptoms include a complete no-heat condition, repeated ignition lockouts after failed spark attempts, erratic blower behavior, or fault codes flashing on the LED diagnostic indicator. Replacing it with the correct OEM board restores factory-precise timing and sequencing that aftermarket boards can only approximate.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LH33WP003 (also referenced as LH33WP003A) | Factory Authorized Carrier OEM replacement | Microprocessor-based DSI ignition control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKey Functions:\u003c\/strong\u003e Controls \u003cstrong\u003espark ignition timing\u003c\/strong\u003e, \u003cstrong\u003egas valve activation\u003c\/strong\u003e, inducer\/blower fan motors, flame sensing, limit switch monitoring, and manual-reset safety lockout — all in one integrated board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V control wiring, high-voltage blower leads, and multiple safety switch connectors. Photograph all wiring harnesses before removal. Tools needed: ¼\" nut driver, needle-nose pliers, multimeter. Recommended for qualified HVAC technicians.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs. Aftermarket:\u003c\/strong\u003e OEM boards are manufactured to Carrier's exact design specifications, preserving factory ignition timing, flame-sensing thresholds, and lockout logic. Aftermarket boards may introduce timing drift or incompatible fault sequences that can mask underlying system issues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePY3PPA060130AA\u003c\/strong\u003e packaged rooftop unit. Also fits select 48-series Carrier and Bryant packaged\/rooftop units using the LH33WP003\/LH33WP003A board — verify your unit's data plate and existing board part number before ordering. Not sure? Contact our fitment team before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640343810419,"sku":"CARRIE-PY3PPA060130AA-CONTROL_BOARD-LH33WP003","price":450.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640343843187,"sku":"CARRIE-PY3PPA060130AA-CONTROL_BOARD-LH33WP003-GEN","price":396.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_f2c6fe2f-4b66-431e-9947-392009c2b52d.jpg?v=1775028234","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3ppa060130aa-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}