Feb 04
I have installed a 10.5 kw electric shower using 10mm twin and earth cable put it through a RDC and a double pole isolating switsh and it was working fine, now it does not. There is power going into the shower unit because the power light is on but when you actually turn the shower on the light goes out and no water is emitted even when set to cold.

Hi, first we must check that you are actually allowed to do this work as the holder of a certificate allowing work to be done in the bathroon zone under part P of the building regulations?
Please see our project on Part P if you have any doubts and if you do not have the necessary qualifications we suggest you call in an electrician to check this work. We have to remind you it is an offence to undertake certain electrical works in your home. Please click on the link http://www.diydoctor.org.uk/projects/partp.htm