{"product_id":"carrier-py3gna030060ab-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY3GNA030060AB","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3GNA030060AB\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Direct Spark Ignition (DSI) control board for the \u003cstrong\u003eCarrier PY3GNA030060AB\u003c\/strong\u003e packaged rooftop unit. The DSI control board is the central brain of the heating system — it orchestrates the entire ignition sequence, monitors critical safety sensors, controls the combustion and blower motors, fires the spark igniter, opens the gas valve, and continuously verifies flame presence through the flame rod. When this board fails, the unit will typically enter hard lockout, short-cycle on ignition attempts, or fail to produce any heat whatsoever. Do not overlook a failed DSI board when diagnosing repeated ignition faults or error codes on your rooftop unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e LH33WP003 (also supersedes LH33WP003A) | Carrier Direct Spark Ignition (DSI) microprocessor-based control board | Factory-matched for \u003cstrong\u003eCarrier PY3GNA030060AB\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board — not an aftermarket substitute. OEM boards carry exact firmware, timing sequences, and terminal configurations. Aftermarket boards may use looser tolerances on trial-for-ignition timing and lockout logic, which can cause nuisance faults or unsafe conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Shut off all power and gas before beginning. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, a multimeter, and a camera or phone to photograph all wiring connections before disconnection. Transfer wires one at a time to avoid miswiring. Cycle the unit and verify all stages after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. 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 as the direct factory replacement for \u003cstrong\u003eCarrier model PY3GNA030060AB\u003c\/strong\u003e packaged rooftop gas\/electric units. Also fits other Carrier, Bryant, and Payne rooftop units that specify LH33WP003 or LH33WP003A — always verify the part number on your existing board's label before ordering. Our HVAC parts specialists are available to confirm fitment prior to purchase. \u003cstrong\u003eOrder now and this part ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640483664243,"sku":"CARRIE-PY3GNA030060AB-CONTROL_BOARD-LH33WP003","price":562.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640483697011,"sku":"CARRIE-PY3GNA030060AB-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_4e0fe466-7b45-4cb9-bc34-2b961d1a16ee.jpg?v=1775028080","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3gna030060ab-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}