Re: Bosch Classixx WAE24363GB
All trade folks will say it should be switched off when the machine is not in use.
Reason is that mains pressure,just like the £ can go up and down,it is often higher in the night when there is little demand and could leak through joints etc,you have mains pressure water in a plastic or rubber hose,these can be faulty from time to time and fail, albeit very rarely when it does it is a disaster ! 😯
No chance of claiming for damages if you leave them on and it leaks when you are out or sleeping.