Yes i have a certificate for the installation. From what i can gather this is a common mistake by some electricians- not wrong but not correct either if you see what i mean. I have contacted him and he is going to stop by and take a look.
Hi there. A few months ago I had the cu replaced in the garage as the old one was well past it. Since the replacement one of the RCDs in the cu has been tripping on a regular basis.
I have narrowed it down to the solar panel system. The odd thing is that it only trips in damp or rainy weather...