Re: Miele W1714 Waterproof Fault
Mostly caused by water from filter going back into base if flap door is not down below horizontal.
Easy to reset without taking any covers off, bearing in mind that its a very heavy machine, you need to tip it up & backwards with front being lifted about a foot off the ground, this will allow any water to come out over lips at edge of base.
Try appliance again a few times, if problem re-occurs then investigate for leaks from door seal, internal hoses etc..