Genuine Daikin CAPAC08 Capacitor is the 8 µF capacitor that supplies the phase shift for the single-phase motor it serves so it starts and runs at speed. When it weakens that motor starts hard, runs slow, or stalls and trips on overload. As an 8 µF capacitor is a low-cost part against the motor it protects, fitting the genuine unit is the easy decision — rated exactly where a generic can sit off-value and run the motor hot.