The common issues with Bitmain Antminer D7 fans are listed in this post along with possible fixes.
1. The mathematical interface indicates that either the fan is malfunctioning or its speed is zero.
Causes and Treatment
The Bitmain Antminer D7 has four fans, and the control board and user panel of the mining device have the same fan numbers (FAN1, FAN2, FAN3, and FAN4, respectively). If a fan is abnormal, replace that one first. If the issue persists after replacing the fan, the control board is likely damaged. Return to the manufacturer for repair.
2. Too high speed
Causes and Treatment
The corresponding fan needs to be replaced because the damaged fan needs to be replaced.
Contact us at any time if you have any questions.
