OEM Carrier Economizer Control Board Kit HH63AW001 for Model TCHC1850HE403402

This is the factory OEM Economizer Control Board Kit (HH63AW001) for the Carrier TCHC1850HE403402 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.

• Specs: 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
• OEM vs Generic: 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.
• Install difficulty: 3/5 — 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.
• Warranty: 1-year OEM factory warranty. In-stock units ship the same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier TCHC1850HE403402 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.