Hi Jan,Thank you for using Just Answer my name is ***** ***** I will help with your question. A socket and see multifunction tester is not the best way of testing a supply it is to be used as at indication of the supply quality a proper multi fuction tester should really be used. The socket and see is probably tripping the RCD because of the way it works. Could you send me a photo of you fuse board.
That's what we thought. Do you mean the mains trip? I am at work right now but might be able to do photo later is that OK?
Yes the main trip I think your main trip is a time delay RCD you probably have that because of the type of earthing you have at the house. A photo later would be great but I feel that there is unlikely to be anything wrong with your supply. The RCD is there to protect you and they can be quite sensitive.
Sorry just sent you a picture of our mains board - hope this is what you need. Many thanks - Jan
Hi,Thank you for the photo you do have an RCD Trip protecting the whole house. I feel that there is no reason why your shower pump could not be upgraded as planned. The new shower pump should be electrically tested after installation and a minor works certificate issued.It may be worth seeing if you could find an electrician who could install and test the new pump for you.