What should I do in a power cut?
First check whether it is just you: neighbours dark too means a network fault, call 105 (free, any supplier) and wait it out. Just your house means your installation: check the consumer unit for tripped switches and reset once. If it will not reset or trips again, leave it off and book fault-finding; repeated resetting drives current through whatever failed.
The street-versus-you check saves both money and time: 105 is the national number that routes to your network operator (not your billing supplier), works from mobiles, and their outage maps and restoration estimates cover you dark-street cases entirely. Nobody should pay a callout for a network fault.
If it is only you, the consumer unit tells the story. A main switch or RCD in the off position with everything else up: reset it once, having first unplugged obvious suspects (anything that was running when the lights went). A single circuit down: same routine at circuit scale, and our tripping guide walks the appliance-elimination process that finds most culprits free.
The one-reset rule exists because protective devices trip for reasons: a device that re-trips immediately has found a persisting fault, and forcing repeated resets pushes fault current through damaged insulation or wet components, enlarging the eventual repair. Leave it off; the rest of the house works.
Preparedness worth having in any older Bristol house: know where the consumer unit is before you need it in the dark, keep a torch near it (not a phone whose battery is the evening's other crisis), and if power cuts affect medical equipment at your address, register with the network operator's Priority Services Register, free and genuinely useful.
More in everyday electrics, or browse all 40 questions on the FAQ index.
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