Getting another EICR done might be the best way to sleep easily knowing everything is just fine. It is not that unusual to see errors being made, but equally it casts some doubts about how useful the results are. The various folk above have gone in to that in some detail.
Having near-perfect IR (insulation resistance) on an older property is quite possible, my own flat was rewired in the early 80s so around 40 years old and all but one circuit was above 1000M ohm, but one of the light circuits varies from around 200M to 800M depending on how damp it has been. But that is not always the case by any stretch so it is one of the slightly suspicious pointers as to whether it was really measured or not.
The C1/C2/C3/FI codes are all about how serious a problem is found, though FI = further investigation when it could not be determined at the time of the inspection (problem suspected but too invasive to check such as lifting floorboards, or needed access to locked areas, etc).
The Best Practice Guide #4 has a lot of information and examples of typical issues and suggested coding:
www.electricalsafetyfirst.org.uk
Basically it is not about whether an installation is 100% up to date, but about how much risk there is from aspects that are not as installed today. So something like old colour coded wire is not compliant but has zero impact on safety (assuming insulation OK, etc).
The guidance from BPG#4 differs slightly from some other guidance (e.g. NICEIC) but most agree it is the most appropriate starting point, however, the electrician doing the inspection is expected to apply their own judgment as some things that are not complaint will have different risks depending on the particular setup.
Having near-perfect IR (insulation resistance) on an older property is quite possible, my own flat was rewired in the early 80s so around 40 years old and all but one circuit was above 1000M ohm, but one of the light circuits varies from around 200M to 800M depending on how damp it has been. But that is not always the case by any stretch so it is one of the slightly suspicious pointers as to whether it was really measured or not.
The C1/C2/C3/FI codes are all about how serious a problem is found, though FI = further investigation when it could not be determined at the time of the inspection (problem suspected but too invasive to check such as lifting floorboards, or needed access to locked areas, etc).
The Best Practice Guide #4 has a lot of information and examples of typical issues and suggested coding:
Best Practice Guides | Electrical Safety First
Electrical Safety First produces, in association with other industry bodies, a range of Best Practice Guides which provide definitive information and guidance on a range of technical subjects.
www.electricalsafetyfirst.org.uk
Basically it is not about whether an installation is 100% up to date, but about how much risk there is from aspects that are not as installed today. So something like old colour coded wire is not compliant but has zero impact on safety (assuming insulation OK, etc).
The guidance from BPG#4 differs slightly from some other guidance (e.g. NICEIC) but most agree it is the most appropriate starting point, however, the electrician doing the inspection is expected to apply their own judgment as some things that are not complaint will have different risks depending on the particular setup.
