{"product_id":"carrier-py3ppa060115na-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY3PPA060115NA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3PPA060115NA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM Direct Spark Ignition (DSI) control board for the \u003cstrong\u003eCarrier PY3PPA060115NA\u003c\/strong\u003e packaged gas heating and electric cooling unit. The DSI control board is the brain of the heating system — it orchestrates the entire ignition sequence by managing the spark igniter, gas valve, combustion blower, and indoor blower motor. It also continuously monitors the flame sensor signal, pressure switch status, and safety limit circuits. When this board fails, common symptoms include a complete no-heat lockout, a furnace that sparks but never lights, a unit that shuts down mid-cycle, or fault codes indicating an ignition failure on the system's diagnostic LED.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e Carrier OEM LH33WP003 (also supersedes LH33WP003A) | \u003cstrong\u003eType:\u003c\/strong\u003e Microprocessor-based Direct Spark Ignition (DSI) control board\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This genuine Carrier OEM board uses factory-matched firmware and connector configurations for a true drop-in fit. Aftermarket boards (such as the ICM291) may require jumper adjustments and can introduce timing variances that affect ignition reliability and warranty coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power and gas before servicing. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, phone camera (photograph all wiring harness connections before removal). Transfer wiring harnesses one-by-one to avoid miswiring. Recommend a qualified HVAC technician for this repair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty on parts. Ships same business day from our warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for \u003cstrong\u003eCarrier model PY3PPA060115NA\u003c\/strong\u003e packaged rooftop gas\/electric units. Verify your unit's existing board part number against LH33WP003 or LH33WP003A before ordering. If you need fitment confirmation, our HVAC parts specialists are standing by. \u003cstrong\u003eOrder now — in stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640344433011,"sku":"CARRIE-PY3PPA060115NA-CONTROL_BOARD-LH33WP003","price":375.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640344465779,"sku":"CARRIE-PY3PPA060115NA-CONTROL_BOARD-LH33WP003-GEN","price":330.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_49efeeb1-4d09-41f2-aea3-ad1616b5c9a5.jpg?v=1775028232","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3ppa060115na-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}