Guidance on the Onshelf and Maintenance of Bitmain Antminer KA3 in Low-Temperature Areas

Here is a comprehensive guide to Bitmain Antminer KA3 Onshelf and Maintenance in Low-Temperature Areas.

As opposed to the Bitmain Antminer KA3’s required working temperature of 0 to 40 degrees Celsius, some cold regions can experience low temperatures of minus 10 to 20 degrees Celsius. This manual will assist in avoiding and resolving issues like burnt hashboards, missing hashboards, missing chips, low-temperature protection, high-temperature protection, and temperature failure brought on by low temperatures.

I. Inspections before Installation

1. During transit, there may be jolts and collisions. Check for any loose heat sinks by shaking the Bitmain Antminer KA3 miner. The heat sinks might detach due to transportation if the miner makes an unusual noise. The installation should not go on.
2. In some cold regions, the temperature is extremely low. The internal temperature of the miner could be much lower than 0 degrees Celsius after a protracted journey. After unpacking the equipment, please place it under 25 degrees Celsius (such as the hot air area in a mining farm) and warm it up for 30 minutes before setting on shelves.

*Note: The goal of warming up is to increase the miner’s temperature while also dispersing the water vapor inside the device. The miner’s preheating area needs to be as dry and low in humidity as possible.

II. Preparation before Powering-up

The Bitmain Antminer KA3 will enter protection mode at a temperature of minus 5 degrees Celsius when it is above 0 degrees Celsius and working. The miner needs to be warmed up before using if the inlet air is colder than minus 5 degrees Celsius. The method of warming up is as follows:

• Adjust the airflow
  Then, send the hot air that was expelled from the miner back to the cold air zone for heating. Rotate the miner’s direction and adjust its angle. Adjust the amount of incoming and outgoing air (ensure that the incoming and outgoing air is unobstructed), thus increasing the incoming air temperature.

*Note: When preheating, make sure the miner is heated evenly to prevent extreme situations like single-point heating or air blocking.

III. Operation After Booting

1. Verify that the firmware is the most recent version. Before setting up the pool, you must update to the most recent firmware if it is not already there. Visit our Bitmain Antminer KA3 firmware page to get the latest version of the firmware.
   *Please double-check the MD5 value after downloading the firmware.
   
   Please use one of our suggested browsers, Google or Firefox, when upgrading a single machine via the website. Upgrade problems could arise if you use a different browser. Before continuing, please restart the miner if the following issue arises during the upgrade.

The BTC tool or the Antpool batch tool should be used for batch upgrades.

2. Notes on Firmware Upgrade

• Because the low temperature is more difficult to form at noon, please try to update the firmware then. You might need to change the Bitmain Antminer KA3 miner’s angle and position or add more heating equipment to increase the temperature at the air inlet, depending on the specifics of the mining farm. So, don’t enable the low-temp protection mode because doing so prevents the miner from starting.
• It is better to update the firmware one shelf at a time rather than all of them at once. If everyone is upgraded, the volume of hot air would drop when the miners stopped digging, causing a group low temperature to develop. When upgrading one shelf at a time, the opposite and adjacent shelves can still be used while the upgraded shelf is in use and some hot air that was lost can spill over, which is generally preferable.
• Start at the top shelf and work your way down when upgrading a miner shelf. While the ones in the top area are being upgraded, the others in the bottom area are still in use, which also helps the upper machine’s air inlet temperature to meet the requirements.
• Having verified that your device is using the most recent firmware, you can configure your IP address and mining pool.
• If you’re unsure how to tell if the miner is running the most recent firmware, please use the BTC tool provided by our company to scan the machine status once, export the.csv file, and send it to our customer service (the file naming format is name + scan time.csv).

IV. Attentions During Operation and Maintenance

1. After the firmware upgrade is completed, if the hashboards missing issue still happens frequently, you can use the function of “locate” to light up the Use the LED on the Bitmain Antminer KA3 miner’s management page to find it, try to unplug it, wait at least a minute, and then plug it back in. 2. If the previously mentioned method is unsuccessful in fixing the problem, you can try shaking the miner while it is unplugged to see if any heat sinks are in danger of coming loose. If the chips or heat sinks come off, it needs to be fixed.
2. Please contact customer service if there are too many anomalies, like a missing hashboard and a low hashrate.
3. The machine will automatically enter protection mode if the temperature is unusually low or high. It ought to be put to use right away once the temperature has stabilized. In extremely cold or extremely hot temperatures, repeated restarts should be avoided as they could damage the equipment.
4. *Notes on restarting

• In the event that the Bitmain Antminer KA3 miners that have already been reinstalled are acting strangely, please avoid direct startup at low temperature and instead use the preheating startup method described above.
• After scanning reveals that the miner is abnormal because of low temperature, it is crucial to raise the temperature first. It’s not advisable to restart immediately in the background.
• If the low temperature drops to minus 5 degrees Celsius or lower, the machine will automatically activate protection. The miner’s ideal operating range is between 5 and 35 degrees Celsius.

If you have any questions, please do not hesitate to contact us so that we may be of assistance.