{"product_id":"carrier-py3ppa036060ab-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 — PY3PPA036060AB","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY3PPA036060AB\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier Direct Spark Ignition (DSI) control board (part# \u003cstrong\u003eLH33WP003\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier PY3PPA036060AB\u003c\/strong\u003e packaged rooftop unit. The DSI control board is the central intelligence of your unit's heating system — it orchestrates spark ignition sequencing, gas valve activation, blower and indoor fan motor operation, flame sensing, inducer motor control, and full safety lockout logic. When this board fails, common symptoms include a no-heat condition, repeated ignition lockout after trial-for-ignition attempts, erratic blower behavior, or a system that starts briefly and then shuts down. Fault codes displayed on the board's status LED can help pinpoint whether the issue is a failed ignition trial, a flame-sensing fault, or a rollout\/limit switch trip — making correct diagnosis critical before replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Direct Spark Ignition (DSI) Integrated Control Board | OEM Part# \u003cstrong\u003eLH33WP003\u003c\/strong\u003e | Microprocessor-based design with onboard LED fault-code diagnostics\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 specifications. Aftermarket boards may lack full compatibility with the PY3PPA036060AB's safety interlock sequences, risking nuisance lockouts or improper flame-sensing thresholds. OEM is always recommended for commercial rooftop applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Disconnect power and verify zero voltage before opening the control compartment. Photograph all wiring harness connections before removal. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Note all jumper\/DIP switch positions on the old board and replicate exactly on the new board before powering up.\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 warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for the \u003cstrong\u003eCarrier PY3PPA036060AB\u003c\/strong\u003e packaged rooftop unit. Also fits other Carrier, Bryant, and ICP commercial rooftop models that specify LH33WP003 — always verify your unit's data plate and existing board part number before ordering. Our technical team is available to confirm fitment. \u003cstrong\u003eOrder today and this ships fast\u003c\/strong\u003e — in-stock and ready to go.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640363012467,"sku":"CARRIE-PY3PPA036060AB-CONTROL_BOARD-LH33WP003","price":343.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640363045235,"sku":"CARRIE-PY3PPA036060AB-CONTROL_BOARD-LH33WP003-GEN","price":302.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_1d2e866b-f1b7-4146-a71d-10fa06a03518.jpg?v=1775028282","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3ppa036060ab-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}