{"product_id":"carrier-tchc1850he403402-control-board-11kz9v","title":"OEM Carrier Economizer Control Board Kit HH63AW001 — TCHC1850HE403402","description":"\u003ch1\u003eOEM Carrier Economizer Control Board Kit HH63AW001 for Model TCHC1850HE403402\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM \u003cstrong\u003eEconomizer Control Board Kit (HH63AW001)\u003c\/strong\u003e for the \u003cstrong\u003eCarrier TCHC1850HE403402\u003c\/strong\u003e commercial rooftop unit. The economizer control board manages the outdoor air damper system, monitoring enthalpy or dry-bulb conditions to determine when free cooling from outside air is available. When this board fails, the unit may experience economizer fault codes, a damper stuck open or closed, erratic damper behavior, or a full system lockout — leading to increased energy costs and loss of proper ventilation or cooling control.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part Number HH63AW001 | Factory-matched economizer control board kit | Designed for Carrier commercial packaged rooftop units | Includes all required board components as a complete kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board, calibrated to factory specifications for the TCHC1850HE403402. Aftermarket boards often lack proper enthalpy sensor calibration and damper actuator communication logic, risking repeat failures and code violations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting line voltage before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and a phone or camera to photograph all wiring harness connections before removal. Confirm all DIP switch settings match the original board configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units ship the same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the Carrier \u003cstrong\u003eTCHC1850HE403402\u003c\/strong\u003e commercial packaged rooftop unit. Always cross-reference the OEM part number HH63AW001 on your unit's data plate or existing board label before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today and get your unit back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640277324147,"sku":"CARRIE-TCHC1850HE403402-CONTROL_BOARD-HH63AW001","price":193.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640277356915,"sku":"CARRIE-TCHC1850HE403402-CONTROL_BOARD-HH63AW001-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-HH63AW001_1574f0b5-674a-46fc-a2f1-d8120217dbc3.jpg?v=1775029009","url":"https:\/\/nationalhvacparts.com\/products\/carrier-tchc1850he403402-control-board-11kz9v","provider":"National HVAC Parts","version":"1.0","type":"link"}