V12 keeps shutting off in seconds, but…

V12 started shutting off after several seconds.

First, it only happened when the vacuum increased suction.

Then, it started happening within normal use. But if I started it in eco mode, it worked ok.

The thing is, once I turned it on again 3 or 4 times on a row, it started working as usual, without shutting off. Like if something is heating up so the vac starts operating as normal.

Now it shuts down even in eco mode. Still, 3–4 restarts help, and it runs until I manually turn it off.