As the Cart Fan (DTS-CFAN) is operated, its battery level decreases. The Cart Fan firmware includes code that maintains the fan thrust as the battery level changes. If the Cart Fan determines that the selected thrust cannot be maintained given the current battery level, the Thrust/Duration indicator LEDs will flash from left to right while the battery indicator LED will flash orange, indicating that the Cart Fan needs to charge.

Charge the Cart Fan or choose a lower thrust level or shorter duration.