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Complete power outage: work through this checklist

Everything suddenly dark? With this short checklist you quickly find the cause and know what to do next.

Urgent electrical problem?

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Suddenly nothing works anymore: no lights, no sockets, no heating that runs on electricity. If the power fails completely, you mainly want to know quickly whether you can do something about it or whether the problem lies outside your home.

This page gives you a clear checklist. That way you can determine in a few minutes whether it is down to the grid operator or your own installation, and when an urgent call-out is the right step.

Check this first

Start outside your home. If the whole street is without power and the public lighting is out, it is probably a fault on the grid. If necessary, ask a neighbour to confirm. In that case you wait for the grid operator and you cannot fix anything yourself.

If you are the only one without power, go to your fuse box. Check whether the main switch, the residual current device or one of the circuit breakers has tripped. A single tripped switch immediately points you towards the cause.

Two technicians in hard hats inspecting an installation and taking notes
Photo: Kindel Media / Pexels

Grid operator or your own installation

If the problem is inside your home, the residual current device (RCD) is the most common cause of a complete outage: it switches off the entire installation when there is a leakage current. If it is in the down position, disconnect the appliances and try to switch it back on.

If the RCD stays on, the problem was with one of the appliances. If it trips again immediately, there is an earth leakage fault in the installation and you should have it inspected. A faulty main switch or a problem at the meter is also work for a qualified professional or the network operator.

Urgent intervention

Call for an urgent intervention if you cannot get the power restored, if the residual current device trips immediately every time, or if you notice a burning smell, heat or sparks at the consumer unit or the meter. In those cases, do not touch anything else.

If you are unsure whether the problem is on your side or on the grid and you cannot work it out, get in touch by phone. We will help you determine what is going on and, if necessary, come to the site quickly.

Checklist for a complete outage

Look at the street

Is the whole neighbourhood dark? Then it is a grid outage and you wait for the network operator.

Check the main switch

Has the main switch or residual current device tripped in the panel?

Disconnect appliances

Unplug the appliances and try switching the residual current device back on.

Smell or heat

If you smell or feel something at the panel or meter, stop touching anything and call.

Checklist step by step

  1. 1

    Look outside

    Check whether the street and the neighbours are also without power.

  2. 2

    Open the consumer unit

    Find the tripped main switch, residual current device or breaker.

  3. 3

    Unload and reset

    Unplug the devices and switch the installation back on.

  4. 4

    Call if in doubt

    If it does not work or you smell something, call for an urgent intervention.

Frequently asked questions

How do I know whether the power outage is down to the grid operator?
Check whether the whole street is without power and whether the public lighting is out. If the neighbourhood is also in the dark, it is a grid fault and there is nothing you can restore yourself. If you are the only one without power, the cause lies in your own installation.
The residual current device is switched down, what now?
First disconnect the appliances from the installation and try to switch the residual current device back on. If it stays on, the fault was with one of the appliances. If it trips again immediately, there is an earth leakage fault in the installation and you should have it checked by a professional.
Can a faulty meter cause a complete outage?
That is possible, but you must not work on the meter itself. If you suspect a problem with the meter or the connection, contact the grid operator or have an electrician assess the situation. Interfering with the meter yourself is not permitted.
What do I do if nothing on the checklist helps?
If you cannot get the power back on, if the residual current device keeps tripping, or if you notice a smell or heat at the consumer unit, do not touch anything else. Call for an urgent intervention and we will inspect your installation quickly and safely on site.

Cannot get the power back on?

If the checklist does not get you any further or you do not trust the situation, call us for an urgent intervention. We will come to inspect your installation quickly and repair what we can.

Call for a callout0494 37 68 68