{"product_id":"carrier-cp48p448p405511cp-control-board-cyc67o","title":"OEM Carrier DSI Control Board LH33WP002 for CP48P448P405511CP","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model CP48P448P405511CP\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM Direct Spark Ignition (DSI) control board for the \u003cstrong\u003eCarrier CP48P448P405511CP\u003c\/strong\u003e packaged unit. The DSI control board orchestrates the entire ignition sequence — managing the inducer motor, spark igniter, gas valve, and flame verification in precise timed cycles. When this board fails, common symptoms include a hard lockout with no ignition attempt, intermittent no-heat calls, error code flashes, or a unit that sparks but never opens the gas valve. Replacing the board with the exact OEM part number \u003cstrong\u003eLH33WP002\u003c\/strong\u003e restores factory-programmed timing and safety lockout logic.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part Number LH33WP002 | Direct Spark Ignition (DSI) control board | Factory-programmed ignition timing and lockout sequencing | Compatible input voltage: 120V \/ 24V control circuit | Designed for Carrier CP48P448P405511CP packaged unit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM control boards carry exact firmware and component tolerances specified by Carrier engineering. Aftermarket boards may use approximated timing logic that causes nuisance lockouts, voided warranties, or unsafe ignition sequencing — always use OEM for safety-critical ignition controls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 120V power and discharging any stored voltage before board removal. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, phone or camera to photograph all harness connections before unplugging. Transfer wiring harnesses one connector at a time to avoid miswiring. Re-run a full heat call to verify proper ignition sequence after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This board is the factory-specified replacement for \u003cstrong\u003eCarrier model CP48P448P405511CP\u003c\/strong\u003e packaged gas\/electric units. Always cross-reference OEM part number LH33WP002 and your unit's data plate before ordering to confirm fitment. Our parts specialists are available to verify compatibility before you purchase — don't guess on a control board. \u003cstrong\u003eOrder now and ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909595582835,"sku":"CARRIE-CP48P448P405511CP-CONTROL_BOARD-LH33WP002","price":156.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909595615603,"sku":"CARRIE-CP48P448P405511CP-CONTROL_BOARD-LH33WP002-GEN","price":90.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-furnace-LH33WP002_6ab84fd3-a6df-4217-9a03-5ebb2f49daaa.jpg?v=1782914366","url":"https:\/\/nationalhvacparts.com\/products\/carrier-cp48p448p405511cp-control-board-cyc67o","provider":"National HVAC Parts","version":"1.0","type":"link"}