TerraMaster Forum

I have been in contact with TNAS support for days now.

I am using the latest BIOS on the F4-424 Pro with the latest TOS 6.

I bought the unit and only after a about 1 month, I started to load my files to the TNAS.

Before I knew it, I had 2 occasions where I got a message on the web login that the power was shut off abnormally and files copied may be at risk.

I took serious precautions since this is not a joke and shutting down without pressing the button or a real power outage is terrifying for a NAS bay that is supposed to save my family memories.

There are only 2 HDD bays in use and 2 NMVE slots used. I wouldn't expect the power level to be high.

What I discovered was that if I place a small fan directly towards the power adapter only then it will not shut off randomly.

I have since move several TB's of data to my hard drives on the TNAS without interruptions.

Has anyone else had their brand new TNAS have an overheating power adapter?

jabediny wrote: ↑05 Jan 2026, 08:24

FYI I have previously experienced "abnormal shutdown" on F2-424 and had discussions with @TMsupport without any real resolution from that end. Only by changing the power supply arrangements (back to a basic TM power supply on a different outlet ) was I able to (mostly) minimise the issue. However, I have to point out that none of the shutdown events impacted on o/s or data and machine would restart without intervention.

We apologize for any inconvenience caused. We have reviewed the email communication records, and a sales colleague will contact you to arrange for a replacement power adapter. Please keep an eye on your inbox.