I am considering renting out my home and moving somewhere warm for a few years. As such I'll need an EICR done on the house. The house was built before earthing was required in lighting circuits. Obviously the code issued will vary depending on who does the EICR, but what do the gurus on here think I should expect? Would the issue be 'solved' by changing the CU to be all RCBO? So many other issues just seem to disappear when this is done. Many thanks in advance for any thoughts or suggestions.