{"product_id":"carrier-py3ppa060115aa-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY3PPA060115AA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3PPA060115AA\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 PY3PPA060115AA\u003c\/strong\u003e packaged gas\/electric unit. As the brain of the heating system, this microprocessor-based board orchestrates the entire ignition sequence — commanding the inducer motor, energizing the spark igniter, opening the gas valve, verifying flame via the flame-sensing rod, and managing blower motor timing. It also continuously monitors safety sensors and will shut the system down and trigger a lockout fault if an unsafe condition is detected. When this board fails, common symptoms include: no heat with no ignition attempt, repeated ignition lockouts, erratic or non-functional blower operation, or a system that starts briefly then shuts off with a fault code.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e LH33WP003 (also supersedes LH33WP003A) | \u003cstrong\u003eType:\u003c\/strong\u003e Direct Spark Ignition (DSI) Control Board | \u003cstrong\u003eFunction:\u003c\/strong\u003e Controls combustion sequencing, spark igniter, gas valve, blower motor, and indoor motor | \u003cstrong\u003eSafety:\u003c\/strong\u003e Monitors trial-for-ignition timing, flame sensing, and system lockout logic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board, not an aftermarket substitute. OEM boards use factory firmware and exact connector layouts, eliminating compatibility guesswork and ensuring the ignition sequence timing matches the heat exchanger design of the PY3PPA060115AA — critical for safe and efficient combustion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power and gas before beginning. Label and photograph all wiring harness connections prior to removal. Tools needed: ¼\" nut driver, Phillips screwdriver, needle-nose pliers, multimeter. Verify all fault codes are cleared after installation. Professional installation recommended if you are unfamiliar with gas appliance wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty against defects. Ships same business day from our climate-controlled warehouse in original OEM packaging.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and factory-matched for the \u003cstrong\u003eCarrier PY3PPA060115AA\u003c\/strong\u003e packaged unit. Also compatible with select Bryant and ICP family units using the LH33WP003\/LH33WP003A board — verify your unit's data plate and existing board part number before ordering. Not sure if this fits? Our HVAC parts specialists will confirm fitment before your order ships. \u003cstrong\u003eIn stock — order now for same-day dispatch.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640345678195,"sku":"CARRIE-PY3PPA060115AA-CONTROL_BOARD-LH33WP003","price":367.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640345710963,"sku":"CARRIE-PY3PPA060115AA-CONTROL_BOARD-LH33WP003-GEN","price":323.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_5d640064-c10f-485e-8e3f-b370e020110a.jpg?v=1775028229","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3ppa060115aa-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}