Search results

  1. P

    Vaillant VCW Sine 18 T3W noise after water diaphragm change

    I had a problem with hot water running cold recently, which has happened before. Last time I renewed the water section diaphragm which resolved the problem with no further issues. This time it turned out to be a only a dry, stuck needle so I lubed it up and changed out the diaphragm anyway...
Back
Top