{"product_id":"carrier-py1rja048115aawb-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 — PY1RJA048115AAWB","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY1RJA048115AAWB\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM \u003cstrong\u003eDirect Spark Ignition (DSI) Control Board\u003c\/strong\u003e (part number \u003cstrong\u003eLH33WP003\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PY1RJA048115AAWB\u003c\/strong\u003e packaged heating and cooling unit. The DSI control board orchestrates the entire ignition sequence — managing inducer pre-purge, spark timing, gas valve opening, flame verification, and safety lockout logic. When this board fails, you'll typically experience symptoms such as a no-heat condition, continuous ignition lockout, intermittent heating faults, error codes on the thermostat, or the system failing to progress past the inducer stage.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Direct Spark Ignition (DSI) logic board | Factory-matched for Carrier PY1RJA048115AAWB | 24V control circuit compatible | Integrated safety lockout and auto-retry logic | OEM part number: LH33WP003\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board, manufactured to exact factory firmware and component tolerances. Aftermarket boards may lack proper lockout timing calibration or flame-sense sensitivity, risking nuisance lockouts or unsafe ignition behavior.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 4\/5\u003c\/strong\u003e — Requires isolation of 120V power and 24V control circuit before disassembly. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, multimeter, and camera or phone to photograph all wiring harness connections prior to removal. Recommend verifying manifold gas pressure and flame sensor condition before condemning the board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before 3PM local time ship same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct drop-in replacement for \u003cstrong\u003eCarrier model PY1RJA048115AAWB\u003c\/strong\u003e packaged units. Always cross-reference the part number printed on your existing board's label before ordering to confirm correct firmware revision. Our HVAC parts specialists are available to verify fitment — \u003cstrong\u003eorder with confidence and get your system back online fast.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640671654259,"sku":"CARRIE-PY1RJA048115AAWB-CONTROL_BOARD-LH33WP003","price":193.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640671687027,"sku":"CARRIE-PY1RJA048115AAWB-CONTROL_BOARD-LH33WP003-GEN","price":170.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_f59a380e-2220-41b7-b2e6-9ff27ecf15dc.jpg?v=1775028263","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1rja048115aawb-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}