Hi
My dahua NVR is getting noisy i have kept the fan clean and dust free but over the years it seems to be getting noisier and unsure what i can do?
It is a DHI - NVR410HS - P- 4KS2
Please send step by step instructions to any answers.
Thanks
My dahua NVR is getting noisy i have kept the fan clean and dust free but over the years it seems to be getting noisier and unsure what i can do?
It is a DHI - NVR410HS - P- 4KS2
Please send step by step instructions to any answers.
Thanks