My xbox one after a few hours of being instant shutdown mode on the energy saving mode is ...

The fan being on 24 hours a day is normal if you have the console in instant on mode.

Switch to energy saving mode if you want silence after shutting down

yes I just posted the same thing.

I have 2 Xbox ones. They are always in energy saving mode.

Just finished testing both and they are both going into instant on mode now, for some unknown reason.

We have a fetch box and the remote for fetch turns the Xbox ones on when they are in standby mode. This is because... they, both the Xbox one and fetch remote share the same infra red ch, which is why we need energy saving mode.....and why we discovered
this new behaviour in what is meant to be a fully shutdown Xbox.

For us now, energy saving mode behaviour = instant on mode setting

Which results in what appears to be Xbox ones randomly turning on when actually it's when someone uses the fetch remote.

To make this happen like 80% less set your xbox ones power mode to Energy Saving, instead of instant-on. This will allow the system to fully shutdown when you turn the system off.

Change your Xbox form Instant on mode to Energy Saving. Instant on causes alot of issues and one of them being wireless connectivity.

support.xbox.com/.../learn-about-power-modes

If you have your Xbox One on instant on mode turn it to energy saving mode instead. Instant on causes alot of problems with networks.