Been asked to find out why a new shower is tripping a new cu rcd,
new shower 9.8kw mira
supplied with 10mm T&E
40amp mcb protected by 63a RCD
Its a new cable thats been run in and I have no equipment to test the continuity etc I went right back to basics ,missed out the 45amp DP switch and it still tripped,then wired it straight into the DP isolator switch of the cu and the shower started straight away I should also say that this cu is fed from the main house but the shower did not trip the main cu.
The mira instructions say to fit a 30a rcd
Anyone any ideas ?
Ta
new shower 9.8kw mira
supplied with 10mm T&E
40amp mcb protected by 63a RCD
Its a new cable thats been run in and I have no equipment to test the continuity etc I went right back to basics ,missed out the 45amp DP switch and it still tripped,then wired it straight into the DP isolator switch of the cu and the shower started straight away I should also say that this cu is fed from the main house but the shower did not trip the main cu.
The mira instructions say to fit a 30a rcd
Anyone any ideas ?
Ta