How to fix an NZXT Kraken Series water pump. NZXT Kraken pump grinding sound fix.

If you have any kind of NZXT Kraken series AIO water cooler installed in your desktop computer and are currently having issues with pump grinding and whining sounds. Followed by your computer emergency shutting down to protect your CPU. This guide will take you through the best troubleshooting steps available.

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NZXT’s range of all in one water coolers are some of the best on the market, though their price has gradually been increasing over the years. They are easy to install, look fantastic, and have a huge range of customisable options within their guiding software, NZXT CAM. Although the price point is quite high, even for entry-level models, NZXT’s warranty is one of the best on the market.

Regardless of the fact that NZXT will cover your expensive cooler under warranty for far longer than any other brand. The downtime suffered during a malfunction is the worst, especially if you’ve recently started a newly released game. Thankfully there is a range of different troubleshooting steps you can take to fix most pump issues, so follow along as we take you through a new and improved troubleshooting guide.

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If you have read our previous guide or watched our previous troubleshooting video on YouTube, you have more than likely tried some of these steps, however, please repeat those along with the extra steps shown. For most people moving their computer or removing their pump to maintenance is what causes pump issues and pump sounds so just be aware you may have to repeat the steps shown in this guide from time to time.

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First, remove the radiator from your computer
Once you have the radiator removed, vigorously shake it in an attempt to move any water bubbles.
Do this with your computer off first, then repeat with it on. (It may shut down before any air bubbles are moved as your CPU will reach critical temps) So repeat this process a few times.
If this doesn’t work, repeat this process at the same time as you move the tubes coming out of the pump (slow steady movements) Hold your radiator above and below your pump while doing this to improve your success rate.
If this doesn’t work reinstall your radiator and shake your entire computer whilst it is turned on. You may have to do this for a good 30 seconds to a minute.
You will know you have fixed the issue with noise levels from the pump start to fade and your computer stays on longer than before.

Note: You should be able to feel the warm water moving through one of the tubes once the flow is restored.

Generally, all of these steps will fix most problems, however, if they don’t, you’ll need to remove the pump from your computer, then connect only the power cord and give the entire system a shake and wiggle until the air bubbles are moved and the pump stops making noise. Again, success will be shown by a reduction in noise from the pump but it may take a bit of time to fully go away.

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