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This is the genuine OEM replacement fan blower control board (part number HK61EA006) for the Carrier FY4ANF030T00AAAA air handler. The blower control board is the central logic module that governs indoor fan operation — managing blower speed sequencing, thermostat signal interpretation, and airflow timing across all operating modes including cooling, heating, and continuous fan. When this board fails, symptoms typically include the blower not starting at all, the fan running at a single speed regardless of demand, intermittent system lockouts, or erratic on/off cycling that no amount of thermostat adjustment will resolve.
Compatibility: This board is factory-specified for the Carrier FY4ANF030T00AAAA air handler. Always confirm the part number printed on your existing board matches HK61EA006 before ordering, as similar Carrier air handler models may use different board revisions. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you buy — contact us with your model and serial number for confirmation. In stock and ready to ship today.