Loud Blowing Sound

My Cloud OS 3 Personal & Network Attached Storage My Cloud Mirror
1

Hi,

I have been using the WD cloud mirror for about 4 months and the blowing sound is getting louder…is this normal?

2

Hi wwho11,

You should run a System Diagnostic Test from dashboard of My Cloud. If drive passed, power cycle the device for this issue.
https://support.wdc.com/knowledgebase/answer.aspx?ID=10427#mirror