{"product_id":"carrier-py3pea048115nb-control-board-cyc67o","title":"OEM Carrier DSI Control Board LH33WP002 for PY3PEA048115NB","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model PY3PEA048115NB\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier Direct Spark Ignition (DSI) control board, part number \u003cstrong\u003eLH33WP002\u003c\/strong\u003e, factory-specified for the \u003cstrong\u003eCarrier PY3PEA048115NB\u003c\/strong\u003e packaged gas\/electric unit. The DSI control board is the nerve center of your system's heating sequence — it manages the ignition trial, monitors the flame sensor signal, controls the gas valve, and sequences the inducer and blower motors. When this board fails, symptoms typically include a hard lockout with no ignition attempt, repeated ignition trials followed by a fault lockout, erratic burner cycling, or a completely unresponsive heating system despite power being present.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LH33WP002 (supersedes LH33WP002A) | Direct Spark Ignition (DSI) type | 460V application | Genuine Carrier OEM board with factory-matched firmware and timing sequences\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM DSI boards use factory-calibrated ignition trial timing, flame-proving thresholds, and lockout logic. Aftermarket boards frequently ship with mismatched timing parameters that cause nuisance lockouts, premature heat exchanger wear, or void equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting 120V power and 24V control wiring harnesses. Tools needed: ¼\" and 5\/16\" nut drivers, needle-nose pliers, phone camera for wiring documentation. Always photograph all connector positions before removal. Allow capacitors to discharge before handling board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer 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 Engineered as the direct factory replacement for \u003cstrong\u003eCarrier PY3PEA048115NB\u003c\/strong\u003e packaged units. Also fits select Carrier, Bryant, and Payne models in the 48, 574, 580, 581, 582, 583, 588, 589, and PY series — verify your unit's data plate and existing board part number before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today and get your system back on line fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640414622067,"sku":"CARRIE-PY3PEA048115NB-CONTROL_BOARD-LH33WP002","price":481.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640414654835,"sku":"CARRIE-PY3PEA048115NB-CONTROL_BOARD-LH33WP002-GEN","price":423.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP002_3bf17d89-00aa-4cff-9117-7f0d393cf623.jpg?v=1775027814","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3pea048115nb-control-board-cyc67o","provider":"National HVAC Parts","version":"1.0","type":"link"}