system perfomance

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1

I have a periodical problem with NAS Qnap D4 (4 slot disk)

filmware QTS 5.2.6.3195

Recently the nas start sends me an email like this:

Severity: Error
Date/Time: 2025/10/29 11:29:06

App Name: Hardware Status
Category: Overheating
Message: [Hardware Status] Powering off the NAS due to overheating. The NAS temperature 75℃ has exceeded 70℃.

and after that message it keeps working, like nothing happen. our zabbix (monitoring system) says that Qnap temperature just rich critical 75℃ without any reason (i mean without some kind of load or cpu utilization) in a two minutes and get back to normal about 40℃. This case Nas repeat 3-4 times per day. How knows, please tell my the way, how to fix that false alerts

2

temperature just rich critical 75℃ without any reason in a two minutes and get back to normal about 40℃. This case Nas repeat 3-4 times per day.

This seems the issue is not genuine thermal runaway, but rather a flawed temperature sensing.

I had a NAS where the fan would run at high speed whenever it was turned on, so I took it to a hardware team for help and it was fixed.

I recommended to open a Support Ticket so that the technical support team can assist you remotely.

3

Thanks, for advise, Хару0 ! Do you think its possible if Im from Russia ?

4

We recommend you also try checking the status of the fan rotation, such as whether it stops spinning under certain conditions or if it has accumulated too much dust. Thanks!

5

Fan speed is stable at ~1600 RPM , after receving alert message fan speed rising up to 3000 RPM for 5 min and then back to normal