Hello, I have had a EICR done on a rental property and feeling quite frustrated about the lack on information provided in the report (I will not be using the same company again). I've got a C3 rating, which I know we don't have to action but would anyone be willing to explain to me what it actually means? The report says: High Ze reading (from DB, not cutout) The extra information I got was: High ZE readings essentially refer to earthing arrangements in the property. High readings could be due to a wiring fault on the earth cable. And I have attached what I think is the relevant part of the EICR as a picture file. But: Earthing Arrangements TN-S External loop impedance, Ze (2) 0.65 I was trying to look online and looks like this could be a DNO issue? Very grateful for anyone who is willing to help, but no worries if not.