Zanussi ZWU 6120 Instruction Booklet page 18

Check whether the drum is completely empty, by
rotating it with your hand. The purpose of this is to
prevent any items of laundry from remaining
accidentally in the drum, where they might get
damaged in a subsequent wash (e.g. by shrinking) or
bleed colour into another load of laundry.
We advise you to close the water supply tap and
disconnect the plug from the socket.
Leave the door ajar in order to air the machine.
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