{"product_id":"carrier-py3ppa060090na-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY3PPA060090NA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3PPA060090NA\u003c\/h1\u003e\u003cp\u003eThis is the OEM-specified Direct Spark Ignition (DSI) control board for the \u003cstrong\u003eCarrier PY3PPA060090NA\u003c\/strong\u003e packaged gas\/electric unit. As the brain of your heating system, this microprocessor-based board orchestrates the entire combustion sequence — controlling the spark igniter, gas valve, combustion blower, and indoor blower motor. It continuously monitors safety timing, flame sensing, trial-for-ignition sequences, and lockout conditions. When it fails, symptoms typically include a complete no-heat lockout, a furnace that sparks but never lights, erratic cycling, or a system that powers on but never initiates a heat call. Fault codes on the board's LED can help pinpoint the root cause before ordering.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e LH33WP003 (also supersedes LH33WP003A) | Manufacturer: Carrier | Board Type: Direct Spark Ignition (DSI), Microprocessor-Based\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM board ships with factory-matched timing sequences, flame-sensing thresholds, and lockout logic precisely calibrated for the PY3PPA060090NA. Aftermarket boards may use broader tolerances that trigger nuisance lockouts or mask real safety faults — a serious risk on gas appliances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power and gas before beginning. Document all wiring connections with photos prior to removal. Tools needed: ¼\" and 5\/16\" nut drivers, needle-nose pliers, phone camera. All connectors are keyed; do not force. Restore power and run a full heating cycle to verify normal LED status before closing the unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits Carrier model \u003cstrong\u003ePY3PPA060090NA\u003c\/strong\u003e packaged gas\/electric units. Verify your existing board's part number against LH33WP003 or LH33WP003A before ordering. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you purchase — contact us before ordering if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640346497395,"sku":"CARRIE-PY3PPA060090NA-CONTROL_BOARD-LH33WP003","price":367.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640346530163,"sku":"CARRIE-PY3PPA060090NA-CONTROL_BOARD-LH33WP003-GEN","price":323.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_4ab65d86-5875-43ef-b4ff-76ab805bdc26.jpg?v=1775028226","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3ppa060090na-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}