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This OEM fan blower control board (part number HK61EA006) is the factory-specified replacement for the Carrier FX4ANF030000ACAA air handler. The control board serves as the brain of the blower assembly, orchestrating indoor fan motor operation, multi-speed blower sequencing, and communication with the thermostat and outdoor unit. When this board fails, common symptoms include the blower fan not running at all, incorrect or erratic fan speeds, failure to enter or exit heating and cooling modes, or the system going into lockout with no clear cause. Replacing the board with a genuine OEM unit restores factory-programmed logic and ensures proper compatibility with all connected components.
Compatibility: Engineered as a direct OEM replacement for the Carrier FX4ANF030000ACAA fan coil air handler. Always verify your existing board's part number against HK61EA006 before ordering, and cross-reference your unit's data plate to confirm model number. Our HVAC parts specialists are available to verify fitment before you purchase — no guesswork required.