{"product_id":"carrier-py1ppa042080acba-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 — PY1PPA042080ACBA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY1PPA042080ACBA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Direct Spark Ignition (DSI) control board for the \u003cstrong\u003eCarrier PY1PPA042080ACBA\u003c\/strong\u003e packaged gas\/electric unit. As the brain of your heating system, this microprocessor-based board orchestrates every stage of the ignition sequence — from energizing the inducer motor and proving the pressure switch, to firing the spark igniter, opening the gas valve, and confirming a stable flame. When it fails, symptoms typically include a hard lockout with no ignition attempt, the system starting then shutting down after a few seconds, a non-functional blower, or fault codes flashing on the board's LED status indicators. Replacing the control board with the factory-matched OEM part restores full sequencing accuracy and keeps your equipment operating within warranty and code requirements.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LH33WP003 | Direct Spark Ignition (DSI) Integrated Control Board | Microprocessor-based with onboard LED fault-code diagnostics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM boards are manufactured to Carrier's exact electrical tolerances and timing sequences. Aftermarket substitutes may introduce ignition timing drift, nuisance lockouts, or incompatible blower delay profiles — risking comfort callbacks and voiding equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 24V and line-voltage wiring harnesses and remounting to the control bracket. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, phone camera (photograph all wiring before removal). Recommended for qualified HVAC technicians. Always disconnect power at the disconnect box before servicing.\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 Designed for the Carrier \u003cstrong\u003ePY1PPA042080ACBA\u003c\/strong\u003e packaged unit. Verify the OEM part number on your existing board's label before ordering — the suffix variant (LH33WP003 vs. LH33WP003A) should match. Not sure? Our fitment team confirms compatibility before your order ships — contact us with your full model and serial number.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640860299635,"sku":"CARRIE-PY1PPA042080ACBA-CONTROL_BOARD-LH33WP003","price":450.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640860332403,"sku":"CARRIE-PY1PPA042080ACBA-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_dca72abc-9156-42c7-8754-dee7d1ef9764.jpg?v=1775028258","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1ppa042080acba-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}