had a call from a client id done a bathroom for a while ago, ufh not working,he said he hadnt commisioned it because of the nice weather ect, anyways no heat coming through, he asked if i had nicked the cable, couldnt of because it was slc over full area,he asks can i take a tile up cos the electrician knows exactly where the problem might be,ok but might damage surrounding tiles getting it out ect,turns out the electrician has cut the matt to suit the floor and taped the probe to the end,so he is going to leave it ?