First response
- If safe, unplug or switch off the individual appliance that seems to cause the trip (kettle, heater, etc.).
- If you smell burning, hear arcing, or see smoke, stay safe: move away, ventilate if safe, and call for help.
- Check whether neighbours have power — a wider outage may be present. For regional power cuts, contact your network operator.
- If you can access your consumer unit safely, you may look (without opening any covers) to see whether an RCD or breaker has tripped. Do not remove panels.
- Call an emergency electrician. Provide postcode, symptoms (what stopped working), any recent works, and access instructions.
Never open a consumer unit or touch exposed wiring. If unsafe or unsure, wait for a qualified electrician.