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RCD Tripping

This web page is a quick to investigating and fixing a tripping RCD. Links to further information are available at the bottom of this web page.


Investigate + Fix RCD Tripping

  • The RCD could be faulty but this is very unlikely.
  • Leave for 5 minutes then try to reset the RCD again.
  • Reset the RCD 3 times, could be a temporary problem, for instance an electrical spike.
  • Unplug all electrical appliances – does the RCD reset OK?
    • Plug everything in one at a time to find the faulty appliance.
    • If you can't unplug an appliance turn the appliance off.
  • Does the RCD trip at a certain time of day?
    • Try to establish a pattern – use the pattern to investigate further.
  • Does the RCD trip only when it is raining?
    • Suggests an outside problem (shed?).
  • Does the RCD only trip when an item turns on, for instance the central heating or a pond pump?
  • Have you just had some electrical work carried out?
  • Have you just bought a new electrical appliance?
  • Downlights – look in the loft – anything shorting across the fitment?
  • Do your neighbours get the RCD trips? Could be the local electricity supply.
  • Do you have outside electrical sockets? Are they free from damp and water?
  • Any outside motion sensors or lights? Are they free from damp and water?
  • What electrical appliances are outside? Are they free from damp and water?
  • Any electrical sockets look burnt?
  • Any electrical plugs hot?
  • Be suspicious of anything with an heating element, for instance a kettle or coffee maker.
  • Are all electrical sockets near the cooker sealed? Could be condensation getting into the sockets.
  • Is water spilling out of the top of the kettle when it boils?
  • Is the kettle\iron leaking?
  • Try unplugging any IT equipment, for instance computers and lap tops.


Links To Further RCD Tripping Information

Investigate and fix tripping RCD – detailed information.


What causes an RCD to trip


Why an RCD trips


How to reset an RCD


Washing machine trips RCD


RCD Images


Judge Electrical Limited
15 Mulberry Court, Huntington, York, YO32 9TU
Telephone 01904 764845 (Landline), 07919 033113 Mobile)
Email info@judgeelectrical.co.uk
VAT No. 852917405. Company Number 6359328