Got a friend who needs his machine servicing, from some (bad) videos he sent me I think the safety valve is scaled and not popping up properly to seal the boiler but he does only use bottled water (Ashbeck) so it shouldn't have seen London levels of scale.
Anyway he sent e a link for caffe79.com servicing as he is thinking of using them, but if anyone has any recommendations or there are any London based engineers on the forum then let me know!
Anyway he sent e a link for caffe79.com servicing as he is thinking of using them, but if anyone has any recommendations or there are any London based engineers on the forum then let me know!