{"product_id":"carrier-py1pna030040acba-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 — PY1PNA030040ACBA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY1PNA030040ACBA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier Direct Spark Ignition (DSI) control board, part number \u003cstrong\u003eLH33WP003\u003c\/strong\u003e, factory-specified for the \u003cstrong\u003eCarrier PY1PNA030040ACBA\u003c\/strong\u003e packaged rooftop unit. The DSI control board serves as the operational brain of your unit's heating system — it manages spark ignition sequencing, gas valve activation, blower and indoor fan motor control, flame sensing, inducer motor operation, and safety lockout functions. When this board fails, common symptoms include a complete no-heat condition, repeated ignition lockouts, short cycling, or the unit failing to progress past the ignition trial period. Fault codes displayed on the board's LED indicators are the fastest diagnostic path to confirming a failed board.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Direct Spark Ignition (DSI) Integrated Control Board | OEM Part # LH33WP003 | Manufacturer: Carrier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board manufactured to original factory specifications, ensuring full compatibility with all safety sensors, wiring harnesses, and timing sequences on the PY1PNA030040ACBA. Aftermarket boards may introduce timing mismatches or connector incompatibilities that compromise reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires safe lockout\/tagout of all electrical and gas supply before beginning. Tools needed: ¼\" nut driver, needle-nose pliers, multimeter, and phone\/camera to photograph all wiring connections prior to removal. Transfer wiring harness connectors one at a time to avoid miswiring. Board is typically panel-mounted with 2–4 screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. 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 Confirmed for Carrier model \u003cstrong\u003ePY1PNA030040ACBA\u003c\/strong\u003e packaged rooftop unit. Verify your existing board's part number on the label before ordering — look for LH33WP003 or LH33WP003A. If you are unsure of fitment, our HVAC parts specialists will cross-reference your model and serial number before your order ships. \u003cstrong\u003eOrder now — in stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641005232499,"sku":"CARRIE-PY1PNA030040ACBA-CONTROL_BOARD-LH33WP003","price":450.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641005265267,"sku":"CARRIE-PY1PNA030040ACBA-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_1dd4d78a-dc9b-46d0-bf0d-7eef777a6d2c.jpg?v=1775028242","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1pna030040acba-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}