QNAP NAS Error Code 24: How to Fix It

Medium 30-60 minutes High Severity Verified June 2026
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Error Code
24
Brand
QNAP
Product Type
nas
Severity
High
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
QNAP NAS Error Code 24 indicates a fan failure inside your network-attached storage device. This is a high-severity alert because without proper cooling, your NAS can overheat, leading to drive failure, data loss, or permanent hardware damage. Acting quickly is essential — do not ignore this warning or continue running the device without addressing the root cause.
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Tools You'll Need

How to Fix Error Code 24

  1. Check the QTS Dashboard for Fan Status

  2. Power Down the NAS Safely

    Always shut down gracefully and unplug the power cord before opening the NAS chassis. Failure to do so can result in electric shock or data loss.

  3. Inspect the Fan Visually and Physically

    Wear an anti-static wrist strap or touch a grounded metal surface before handling internal components to avoid damaging electronics with static discharge.

  4. Clean the Fan and Vents Thoroughly

    Do not use a vacuum cleaner directly on electronic components — static discharge from vacuums can damage the NAS motherboard.

  5. Reseat the Fan Power Connector

  6. Replace the Failed Fan

    Use only a fan with the correct voltage rating (typically 12V DC) and connector type for your specific QNAP model. Using an incompatible fan can damage the NAS controller board.

  7. Verify and Monitor After the Fix

Parts You May Need

NAS system cooling fan
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Fan power connector cable
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NAS system cooling fan
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Fan power connector cable
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NAS system cooling fan
Check Price on Amazon
Fan power connector cable
Check Price on Amazon
NAS system cooling fan
Check Price on Amazon
Fan power connector cable
Check Price on Amazon
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When to Call a Professional

Contact QNAP technical support or a qualified NAS technician if: (1) you replaced the fan but Error Code 24 persists, suggesting a faulty fan controller or motherboard issue; (2) the NAS shows signs of heat damage such as burn marks, melted plastic, or a burning smell; (3) your unit is still under warranty — opening the chassis yourself may void the warranty, so contact QNAP support first; or (4) you are uncomfortable working inside electronic hardware and want to avoid the risk of data loss or further damage.

Frequently Asked Questions

Will QNAP Error Code 24 cause data loss?
Error Code 24 itself does not directly cause data loss, but the fan failure it signals can lead to overheating. Sustained high temperatures can damage hard drives and the NAS motherboard, which can result in data loss. Address the error as quickly as possible and avoid running the NAS for extended periods until the fan is repaired.
Can I run my QNAP NAS temporarily with a failed fan?
It is strongly not recommended. Running a NAS with a failed fan — even briefly — risks overheating the drives and internal components. If you must keep it running in an emergency, place it in a cool, well-ventilated area and add an external USB or desk fan blowing directly into the chassis vents, but treat this only as a very short-term measure while you obtain a replacement fan.
What fan size does my QNAP NAS use?
Fan size varies by QNAP model. Common sizes include 60mm, 70mm, and 80mm square fans. The exact size and voltage rating (usually 12V DC) are printed on a label on the fan itself. You can also check your specific model's hardware specifications on the QNAP official website or in the hardware user manual included with your device.
How do I prevent QNAP fan failure in the future?
Regular maintenance is key. Clean the fan and chassis vents with compressed air every 6-12 months to prevent dust buildup, which is the leading cause of fan failures. Ensure the NAS is installed in a well-ventilated location away from walls. Set up fan failure and temperature alerts in the QTS Notification Center so you are warned immediately if a problem develops.
Does QNAP Error Code 24 always mean the fan is broken?
Not always. Error Code 24 can also be triggered by a disconnected fan power cable, excessive dust causing the fan to stall, or a temporary firmware glitch. Start by checking the cable connection and cleaning the fan before purchasing a replacement. If the error persists after these steps, then a physical fan replacement is most likely needed.

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