Miner fans are an essential tool for miners to dissipate heat. However, when one of the fans fails to work correctly or the fan speed is 0 (as shown in the figure below), the miners will have no hash rate and cannot mine normally. Then, when miners encounter this fault, they can refer to the following methods for troubleshooting.
Cause of issue:
1. The fan cable is loose or damaged;
2. The fan is damaged.
1. Reconnect the fan interface, or replace the fan data cable with a new one;
2. If the fan is damaged, replace the damaged fan directly.