What is the replacement method for the Antminer cooling fan?

MARTECH DF1203812B2UN cooling fan, voltage 12V, current 2.7A, speed 6000RPM, size 120*120*38mm. Equipped with high precision dual ball bearings, 4 wire PWM temp controlled speed adjustment, and low noise at 65dB, it is ideal for Antminer KS5, KS5pro, S21, T21, S19 series, Iceriver KS3M, KS3L, KS5L, and more. Its long lifespan, ample airflow, and wind pressure effectively dissipate heat build up within miners, maintaining optimal operating temperatures to prevent system crashes or damage due to overheating.

In the event of a faulty cooling fan, heat inside the miner cannot be expelled promptly, leading to a sharp rise in temp. Core hardware may automatically run at reduced frequency due to overheating, reducing mining efficiency. Prolonged exposure to high temperatures accelerates aging of internal components, shortening their lifespan.

Steps for miners to replace the MARTECH fan:

Removing the faulty fan:

1. Ensure power is off to prevent electrocution.

2. Sweep away the dust, unscrew the fixing screws of the faulty cooling fan, remove the control board housing, unplug the fan plug, and carefully remove the fan from the miner.

3. Detach the protective grille from the fan.

Installing the new fan:

1. Prepare a new MARTECH DF1203812B2UN cooling fan, making sure its model is correct and its appearance is intact.

2. Align the new fan with the screw holes on the side of the miner case and securely tighten using an electric screwdriver.

3. Install the previously removed protective grille to the new fan, making sure that both the fan and grille are securely installed.

4. Connect the cables, making sure they are secure and not loose.

5. Reconnect the miner's powering, check whether the new cooling fan can operate normally, check whether the temp of the miner returns to normal, and ensure that the cooling effect is good.

Replacing the MARTECH DF1203812B2UN fan in miners promotes efficient airflow circulation, significantly reducing operating temperatures and noise levels, providing a stable environment for mining rigs. This enhances overall performance, extends miners' lifespans, and ensures sustained profitability.