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- 8 Oct 2009
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Recently fitted 17th edition consumer unit with 2 rcds and insatlled 40 amp shower circuit downstairs of the house - this is fine.There is also a shower upstairs. All is fine except the shower upstairs trips both rcds when the cord of the switch is pulled. It does not trip the mcb. I have replaced the cable from the cu to the pull cord switch and replaced the switch. I have connected a different length of cable to the shower but it keeps trippining both the rcds. Am i correct in saying the shower itself must be at fault ? I am not long qualified, help and advice would be much appreciated