link1 year ago000The hoover is suddenly very loud. We have cleaned the filter and everything else. Unfortunately, I can't find any operating instructions online. Can anyone help?Show in original language (German)matthsupay51 year ago • purchased this product000purchased this product Helpful answerWe had something like that once, something had got stuck in the pipe.Show in original language (German)CommentMRoemmel1 year ago • purchased this product000purchased this productHere is the link to the operating instructions:https://www.philips.ch/c-p...Show in original language (German)Comment