Electrician turned up today to have a look.
Confirmed that
a) It could do with a proper earth terminal fitting ( I have tried to have one fitted, but trying to contact someone with a brain at the DNO is impossible)
b) Polarity is reversed at the CU.
His advice was to chase the guy who installed it and try and get him to rectify & certify it / report installer and get new guy in to fix and test it.
I am probably going to get this guy to test it after christmas and just report the original c*nt who installed it.
Confirmed that
a) It could do with a proper earth terminal fitting ( I have tried to have one fitted, but trying to contact someone with a brain at the DNO is impossible)
b) Polarity is reversed at the CU.
His advice was to chase the guy who installed it and try and get him to rectify & certify it / report installer and get new guy in to fix and test it.
I am probably going to get this guy to test it after christmas and just report the original c*nt who installed it.