WV2 Karcher window vac

This was a bad experience for me. The first one I bought had a major problem with the switch within 3 weeks. The good news was that B & Q refunded me with no quibbles and so I bought a replacement at the same time thinking that my luck wouldn't fail me a second time. This one lasted just under twelve months and, low and behold, exactly the same thing happened with the switch. B & Q refunded again but then I decided enough was enough. I contacted Karcher to explain - I might as well have talked to the wall.