{"product_id":"carrier-py1pna036060adba-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 — PY1PNA036060ADBA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY1PNA036060ADBA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier Direct Spark Ignition (DSI) control board, part number \u003cstrong\u003eLH33WP003\u003c\/strong\u003e, factory-specified for the \u003cstrong\u003eCarrier PY1PNA036060ADBA\u003c\/strong\u003e packaged rooftop unit. The DSI control board is the operational brain of your heating system — it manages spark ignition sequencing, gas valve activation, combustion blower and indoor fan motor control, flame sensing, and safety lockout logic. When this board fails, symptoms typically include ignition lockout after a failed heating attempt, the unit failing to produce heat entirely, erratic blower behavior, or a solid\/flashing fault LED indicating a diagnostic code on the board itself.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Specs:\u003c\/strong\u003e OEM Part# LH33WP003 | Direct Spark Ignition (DSI) integrated control | Microprocessor-based with onboard LED fault diagnostics | Factory-matched for Carrier PY1PNA036060ADBA rooftop packaged units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the genuine Carrier-manufactured board engineered to original design specifications. Aftermarket substitutes (e.g., ICM291) may function in some applications but can lack full diagnostic code fidelity, timing precision, and long-term reliability that an OEM board provides — particularly important on commercial rooftop equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 4\/5\u003c\/strong\u003e — DSI control board replacement requires shutting off all power and gas supply before beginning. Document all wiring harness connections with photos prior to removal. Tools needed: ¼\" and 5\/16\" nut drivers, needle-nose pliers, multimeter. Recommended for qualified HVAC technicians. Always verify fault codes with the unit's service manual before condemning the board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our stocked warehouse — no backorder delays.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePY1PNA036060ADBA\u003c\/strong\u003e packaged rooftop gas\/electric unit. Verify your unit's data plate and existing board part number before ordering. Cross-reference: replaces LH33WP003A. Not sure it fits? Our HVAC parts specialists verify fitment before you place your order — contact us anytime.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640994746739,"sku":"CARRIE-PY1PNA036060ADBA-CONTROL_BOARD-LH33WP003","price":562.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640994779507,"sku":"CARRIE-PY1PNA036060ADBA-CONTROL_BOARD-LH33WP003-GEN","price":494.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_5e28553f-4e84-4e93-8d3f-520e3ca15565.jpg?v=1775028245","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1pna036060adba-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}