TerraMaster D5-300C powering off/on randomly

[RhonBhay]

Bought this from Amazon,have own this unit for about 4 months now. Initially it work fine , no issues with it. I connected it to my Terra master NAS F2-210. After about 3 months ( pass the return window date) the unit, started acting weird, I cannot finish transferring files to it because it started to shut down and then power up again. . . it did this randomly, sometimes after 30 mins sometimes 5 mins or just keeps shutting down and then powering up even before you can access the files in the drives . So, I immediately remove my drives (5 8TB WD) . All my drives are new. Tested them before I put it in the enclosure my drives are good. I configured it all as single drives. I use the provided USB C cable and power supply. I connected it to 3 PCs 2 of them are new with USB 3.1. I also connected it to another NAS from terra master (F4-210) . And the issue is still there. The unit randomly shuts off and power up even when I remove the drives. I tested my new and good drives after this and they all have CRC issues , that where not there before. I give up don't know whats wrong with the unit. Hopefully you can advise me on what to do with it.

[TMS]

Check whether the power supply is correct or try to install one other hard disk (except for 5 8TB WD) in the D5_300c machine and whether it still be power off/on randomly?

[RhonBhay]

Check whether the power supply is correct or try to install one other hard disk (except for 5 8TB WD) in the D5_300c machine and whether it still be power off/on randomly?

I did that already. I use the provided USB C cable and power supply. I also tried different drives 4TB, 3TB, 1TB..WD/Seagate/HGST . . . Still the same . . .

[TMS]

Please take a video to show us, if it is determined that the switch is broken, we provide after-sales service.

[RhonBhay]

Please take a video to show us, if it is determined that the switch is broken, we provide after-sales service.

Can I post the video in this forum? How do I do that? I did sent you an e-mail with a video file attachment a week ago,have not received a response yet.

[RhonBhay]

Please take a video to show us, if it is determined that the switch is broken, we provide after-sales service.

https://images-na.ssl-images-amazon.com ... yQPO8S.mp4

[TMroy]

The power control board seems to be defected. please contact with support team and ask for replacement.

[RhonBhay]

The power control board seems to be defected. please contact with support team and ask for replacement.

No response from the support team still.

[RhonBhay]

There were 3 other cases in the Amazon.ca forum that are identical.it seems it is a common failure of this unit , which occurs 3 to 4 months after initial use. This problem does not only corrupt the drives in it, but also damages your USB terminal, due to the random rapid powering on/off.It corrupted 1 of my 8TB WD red drive and made one of my PC's USB 3.0 back terminal unusable.

[RhonBhay]

I finally got the replacement yesterday. It works fine so far , let see after 3 to 4 months from now. I do have to pay for the $20 shipping cost of the defective product back to them. I have lost my confidence in this product, so I'm not risking putting any new drives, or important files in them . It cost me just about the same if I had gotten a more expensive product than this. The 8TB drive it corrupted, the time I lost from transferring large amount of the data (data recovery),so it almost doubled it's cost.