EICR Test Fail, before and after

[HappySlappy]

Is circuit 3 a ring ? Or is it already a pair of radials ?
Is the feed to the boiler via a fcu ?
What type of boiler is it ?
Do you have an immersion tank heater ?

The chap who come to do the EICR said 3 was a ring that had lost continuity, but I don't think he can be relied upon.
Yes Boiler has FCU.
Combi boiler - no tank, it was fitted last year by BG

 

[Diddy]

Sorry not much to add except to say those terminations are so bad they make my eyes bleed. Exposed copper all over the place.

I think you need a new electrician that comes recommended. If you don't know any from family or friends then at least you could look up NICEIC etc for a registered electrician from your area.