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RN104 'Fan System in enclosure Internal speed is below threshold. (0 rpm)' message
Hey all,
This morning on my RN104 I got the error message "Fan System in enclosure Internal speed is below threshold. (0 rpm)", However the fan is running flat out, sounding almost like a hair dryer. No adjustment to the fan speed settings in the Admin page seem to make any difference.
Recent changes: 12 days ago I installed a new drive after a drive became degraded. I then upgraded from 6.10.2 to 6.10.3.
A reboot makes no difference.
I am running 6.10.3 firmware.
Does anyone have any suggestions as to what the issue may be and a possible fix?
It sounds like the tachometer signal from the fan isn't working. Obviously, use warranty replacement if that's an option. Otherwise, hopefully, it's the fan itself and a fairly easy fix by replacing it. If it's the monitor circuit, there's nothing you can do save add a "pad" that lowers the fan speed (but does nothing to correct the NAS's ability to monitor or control the speed).
8 Replies
Welcome to the Community!
Do you notice if there's a change in the temp of the NAS itself? or the drives might be running hot.
If you still have warranty on your RN104, which is 3 years it is best to contact Support so they can issue you RMA if needed.
HTH
Hey Marc_V
Thank you for your reply.
Both drives are maintaining a steady 19 to 20 degrees C (68 degrees F).
The CPU temp is a pretty steady 34 degrees C (91 degrees F).
I no longer have warranty on this product so I am happy to do whatever is economically viable to repair it.
Cheers,
Lawrence
It sounds like the tachometer signal from the fan isn't working. Obviously, use warranty replacement if that's an option. Otherwise, hopefully, it's the fan itself and a fairly easy fix by replacing it. If it's the monitor circuit, there's nothing you can do save add a "pad" that lowers the fan speed (but does nothing to correct the NAS's ability to monitor or control the speed).
Hello Sandshark
Thanks for your suggestion!
Out of warranty unfortunately.
I was hoping it might be a software issue with a software fix, but I'm happy to change out the fan to see if that will fix it.
Can you suggest any other troubleshooting I could do to help me to determine if it is a software or hardware issue?
Regards,
Lawrence
If you have any old fan you can connect temporarilly to see if it then senses the RPM, that would be good. Otherwise, I don't know of anything without an oscilloscope or frequency counter.
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