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This genuine OEM Carrier control board (HK61EA005) is the central control module for your FB4ANF048010AFAA fan coil air handler. It governs blower motor staging, fan on/off timing, relay logic, and built-in safety functions, translating thermostat demands into precise system operation. Symptoms of a bad control board include a blower that won't run, intermittent fan cycling, repeatedly blown fuses, or a completely unresponsive air handler. Engineered to factory specification for the FB4ANF048010AFAA, this board ensures correct connector alignment and voltage handling for a clean, direct replacement. Installation is moderate and recommended for an HVAC technician: kill the power, photograph the wiring harness, move each connector to the new board one at a time, then secure it in place. Authentic Carrier construction delivers the reliability and longevity you expect. In stock and ships same-day when ordered before 3PM CST so you can restore heating and cooling quickly. Trust NationalHVACParts.com for genuine OEM Carrier parts and dependable, fast shipping.
This part is compatible with Carrier model FB4ANF048010AFAA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.