We experienced problem on 1080p camera of the C40 codec wherein the camera produces mechanical sound which is not a normal sound. Actually it vibrates and produces mehanical sound and you cannot even control it while it is vibrating.
We experienced same problem after replacing with new camera. After a month of using it the problem gets back.
Other than what Marius mentioned, please confirm if the camera is mounted on a stand with the base screw tighten, if yes can you try it on a table or just loose the screw a bit and see if there is any difference.
Other than that (may relate to the issue)
Moreover please confirm the software version on the codec as well, newer release does have a better handling on camera motor speed.
First i would like to know which camera are you using, is it a 4X camera or a 12X camera?
If it is a 4X camera, can you confirm if it is Mounted?
A mounting bracket looks like the image below. When using the kit to mount the camera atop of the monitor, if the screw is too tight, it will cause this grinding noise. make sure you loose the screw little bit and check if you still get the noise. You can also place the camera on the Desk and then check.
If the screw would be tight the camera wont be able to Pan or Tilt as well.
This is caused by over-tightening the mounting bolt when installing the camera. Sounds too simple to be true but we dealt with this many times, once we realized this was the issue, we only finger tighten the bolt that attaches the camera to the mount and the problem does happen.
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