{"product_id":"carrier-tchc1850he403403-control-board-11kz9v","title":"OEM Carrier Economizer Control Board Kit HH63AW001 — TCHC1850HE403403","description":"\u003ch1\u003eOEM Carrier Economizer Control Board Kit HH63AW001 for Model TCHC1850HE403403\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier economizer control board kit (part number \u003cstrong\u003eHH63AW001\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier TCHC1850HE403403\u003c\/strong\u003e commercial rooftop unit. The economizer control board manages the motorized outdoor air damper, enabling free-cooling mode when outside conditions are favorable — reducing mechanical cooling load and improving energy efficiency. When this board fails, symptoms include the economizer damper stuck open or closed, fault codes related to economizer function, erratic damper behavior, or a complete loss of free-cooling operation leading to increased energy consumption and reduced comfort control.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Carrier part number HH63AW001 | Factory-matched economizer control board kit | Designed for commercial rooftop packaged unit application | Includes all kit components for direct swap installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier board pre-programmed to factory specifications. Third-party boards may require manual configuration or lack full compatibility with the unit's integrated controls, risking improper damper sequencing and voided equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires shutting down the unit and locking out power at the disconnect. Tools needed: Phillips and flathead screwdrivers, 1\/4\" nut driver, multimeter, and camera or phone to document wiring before removal. Commercial rooftop experience recommended; consult the unit's service manual for economizer wiring diagrams.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier TCHC1850HE403403\u003c\/strong\u003e commercial packaged rooftop unit. Always verify your unit's model and serial number data plate matches before ordering. Not sure if this is the right board for your unit? Our HVAC parts specialists are available to confirm fitment — reach out before you order and we'll make sure you get the correct part the first time.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640276472179,"sku":"CARRIE-TCHC1850HE403403-CONTROL_BOARD-HH63AW001","price":206.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640276504947,"sku":"CARRIE-TCHC1850HE403403-CONTROL_BOARD-HH63AW001-GEN","price":181.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HH63AW001_6b61461b-f538-43bc-a4ed-24dd620ed697.jpg?v=1775029012","url":"https:\/\/nationalhvacparts.com\/products\/carrier-tchc1850he403403-control-board-11kz9v","provider":"National HVAC Parts","version":"1.0","type":"link"}