{"product_id":"carrier-py3ppa030060nb-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY3PPA030060NB","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3PPA030060NB\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier \u003cstrong\u003eLH33WP003\u003c\/strong\u003e Direct Spark Ignition (DSI) Control Board — the factory-specified replacement for the \u003cstrong\u003eCarrier PY3PPA030060NB\u003c\/strong\u003e packaged rooftop unit. The DSI control board is the brain of the heating system, orchestrating spark ignition sequencing, gas valve activation, inducer and blower motor operation, flame sensing, and safety lockout logic. When this board fails, common symptoms include a complete no-heat condition, repeated ignition lockouts, erratic burner cycling, or the unit failing to progress past the inducer pre-purge stage. LED fault codes on the board itself can help pinpoint the failure mode before replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LH33WP003 (also supersedes LH33WP003A) | OEM Carrier factory part | 24 VAC control voltage | 208\/230 VAC 60Hz main power input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board manufactured to original design specifications, ensuring full compatibility with all safety circuits, flame sensor thresholds, and timing sequences. Aftermarket boards may use non-calibrated timing that causes nuisance lockouts or unsafe ignition retries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power and gas before starting. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, multimeter, phone\/camera to document wiring. Transfer wiring harnesses one connector at a time to prevent miswiring. Verify all connector latches are fully seated before restoring power.\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 Direct OEM replacement for the Carrier \u003cstrong\u003ePY3PPA030060NB\u003c\/strong\u003e packaged rooftop unit. Also fits other Carrier, Bryant, and ICP-family rooftop units that originally shipped with the LH33WP003 or LH33WP003A board — verify your unit's data plate and existing board part number before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy. \u003cstrong\u003eOrder now and ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640364323187,"sku":"CARRIE-PY3PPA030060NB-CONTROL_BOARD-LH33WP003","price":368.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640364355955,"sku":"CARRIE-PY3PPA030060NB-CONTROL_BOARD-LH33WP003-GEN","price":324.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_cb2900c7-203c-482b-85fc-317d204ce01d.jpg?v=1775028185","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3ppa030060nb-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}