Rcd trips can anyone help?

new cabling anywhere?
sounds like a crossed or shared neutral somewhere..

it might help if you say what country as well..

Dean Worrall
April 2010

Throw all the small breakers to off and set the RCD to on - ideally it will not trip. One by one reset the MCBs to on until you find which circuit is causing the problem - might be power might be lighting.

When you know which circuit it is then unplug / switch off all the lights or appliances on that circuit - re-energise the MCB and turn lights / appliances on one at a time until the RCD trips.

Good luck...

Peccavi
March 2010