ActronAir Indoor Evaporator Fan Blower 9x9 S 425W sits between the 315W and 600W variants in the 9x9 blower range, providing the correct airflow volume for mid-capacity Classic Series indoor units where the 425W motor rating matches the connected coil and duct system design. The 10uF run capacitor is specific to this motor rating -- fitting a 15uF capacitor from the higher-wattage 600W version will cause overcurrent and premature motor failure. Isolate power at mains before replacement -- live work on fan assemblies is dangerous and must only be performed by a qualified technician.