{"product_id":"carrier-py3pea036090nb-control-board-cyc67o","title":"OEM Carrier DSI Control Board LH33WP002 for PY3PEA036090NB","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model PY3PEA036090NB\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 PY3PEA036090NB\u003c\/strong\u003e packaged unit. The DSI control board is the brain of the heating system — it sequences and monitors the entire ignition cycle, from inducer startup and pressure switch proving through spark ignition and flame verification. When this board fails, common symptoms include a hard lockout with no ignition attempt, intermittent no-heat calls, failure to prove flame even when the burner lights, or error codes indicating a control board fault.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Direct Spark Ignition (DSI) control board | OEM part number LH33WP002 | Replaces LH33WP-002 | 460V ignition control module | Factory-matched timing and lockout logic for Carrier packaged systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM DSI boards use factory-calibrated ignition timing, trial-for-ignition duration, and lockout thresholds. Aftermarket boards frequently run out-of-spec timing sequences that cause nuisance lockouts, void equipment warranties, and can create unsafe ignition conditions. Always choose OEM for control boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Power must be fully disconnected at the disconnect and breaker before beginning. Label or photograph all wire harness connections before removal. A multimeter is recommended to verify 24V control circuit integrity before reinstalling. Allow the board to acclimate to ambient temperature if stored in a cold environment before powering up.\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 Engineered and factory-matched for the \u003cstrong\u003eCarrier PY3PEA036090NB\u003c\/strong\u003e packaged unit. Verify your existing board's part number against LH33WP002 or LH33WP-002 before ordering. If you're unsure of fitment, our HVAC parts specialists can verify compatibility before your order ships — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640427434355,"sku":"CARRIE-PY3PEA036090NB-CONTROL_BOARD-LH33WP002","price":487.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640427467123,"sku":"CARRIE-PY3PEA036090NB-CONTROL_BOARD-LH33WP002-GEN","price":429.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP002_9ebd3028-48e7-4139-b885-f94c3cb9d825.jpg?v=1775027781","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3pea036090nb-control-board-cyc67o","provider":"National HVAC Parts","version":"1.0","type":"link"}