How to replace the Whatsminer cooling fan KZ14038B012U?

The Whatsminer cooling fan KZ14038B012U is a high-performance fan designed specifically for cryptocurrency miners. It is suitable for replacing the fans of M20S, M30S miners. With dimensions of 140mm x 140mm x 38mm, a 12V voltage, and a current of 7.2A, it utilizes a high-quality copper motor and steel bearing to provide a longer lifespan and stable performance. Its design offers robust airflow and efficient cooling, effectively reducing noise, crucial for miners to operate stably and efficiently. This cooling fan boasts significant advantages in durability, cooling efficiency, and low noise.

The impact of miner fan failure:

1. Fan failure can reduce the miner's cooling effect, leading to an increase in temperature and overheating.

2. Overheating can affect the miner's performance, reducing the hash rate and impacting mining efficiency.

3. Continuous overheating may damage the miner's internal hardware, shortening the equipment's lifespan or causing permanent damage.

4. Some miners have an overheat protection mechanism that automatically shuts down to prevent damage if excessive temperatures are detected, leading to mining interruptions.

5. Fan failure may cause abnormal noise, increasing noise pollution in the working environment.

Promptly replacing faulty fans is a crucial measure to ensure miners' stable and efficient operation. To replace a faulty WhatsMiner fan, follow these steps:

Prepare a screwdriver and a brand-new fan.

Disassembling the faulty fan:

a. Check the WhatsMiner running log to see if there is a faulty cooling fan. If there is, replace it immediately.

b. Ensure the miner is powered off and unplug the power cord to prevent electric shock or equipment damage.

c. Use a screwdriver to unscrew the screws of the faulty fan's protective grille, disconnect the cable connecting the fan to the control board, and remove the defective cooling fan.

d. Use a screwdriver to remove the screws, fix the fan, and carefully take off the faulty fan.

Installing the new fan:

a. Check if the new fan model is correct, align the new fan with the installation position, and use a screwdriver to fix the new fan securely.

b. Install the fan protective grille onto the new fan and tighten the screws.

c. The cable directly connects to the interface outside the control board cover. During installation, check whether the interface is damaged and align it to ensure it is securely inserted.

d. Power on the miner again, start the miner, check the fan's working status, and ensure the miner operates stably.

e. Observe for some time to confirm that the new fan operates smoothly, without abnormal noise or vibration, and ensure the miner's cooling effect is good.

Replacing faulty fans is significant for the profitability of WhatsMiner miners. The new fan can effectively enhance cooling efficiency, prevent miner overheating, and maintain a stable hash rate, ensuring that mining efficiency is unaffected. A stable temperature-controlled environment prolongs the miner's lifespan, reducing downtime and repair costs due to hardware failures. By promptly replacing faulty fans, miners can operate continuously and efficiently, maximizing mining revenue and ensuring a steady increase in the return on investment.

If WhatsMiner machine encounter other faults, please refer to the following articles for more details:

Whatsminer troubleshooting and solutions