What is the difference between an RCD and an MCB? +
An MCB (Miniature Circuit Breaker) protects against overcurrent and short circuits — it is the modern equivalent of a fuse. An RCD (Residual Current Device) protects against earth leakage, which is what can kill you if you touch a live wire. Modern consumer units use RCBOs, which combine both functions into a single device per circuit, giving you the best protection. If your consumer unit still has rewirable fuses, it is overdue for an upgrade.
What should I do if I smell burning from a socket or switch? +
Switch off the circuit at the consumer unit immediately and unplug everything from the affected socket. Do not use the socket again until it has been inspected by a qualified electrician. A burning smell from electrical fittings usually indicates overheating caused by loose connections, overloaded circuits, or deteriorated wiring — all of which are fire hazards. Call an emergency electrician in Dundee straight away.
What should I do if I have a complete power cut in Dundee? +
First, check whether your neighbours also have no power — if so, it is likely a supply fault and you should call your local distribution network operator (DNO), not an electrician. If it is only your property, check your consumer unit for tripped switches. If the main switch will not stay on, or keeps tripping immediately, do not keep resetting it — call an emergency electrician in Dundee as there may be a serious fault on one of your circuits.
What should I do if a socket is sparking? +
Stop using the socket immediately and switch off the circuit at the consumer unit. Sparking when plugging in can sometimes be normal (a brief blue flash), but persistent sparking, blackening around the socket, or a crackling sound indicates a serious wiring fault. Do not attempt to remove the socket faceplate yourself — call a qualified electrician in Dundee to inspect and repair it safely.
Can I do any electrical work myself? +
You can legally carry out minor electrical work such as replacing light switches, sockets (like-for-like), and light fittings without notifying building control. However, you must not add new circuits, work in bathrooms or kitchens (within zones), replace a consumer unit, or install outdoor wiring unless you are Part P registered. DIY electrical work is a leading cause of house fires — if you are unsure, always call a qualified electrician in Dundee.
Why do my lights flicker in Dundee? +
Occasional flickering is usually caused by a loose bulb or a poor connection at the light fitting. Persistent flickering across multiple lights can indicate a loose neutral connection at the consumer unit, a faulty main switch, or an issue with the incoming supply. If all lights in your home flicker simultaneously, this could be a supply-side issue — contact your DNO first. Otherwise, have an electrician in Dundee check the connections at your consumer unit.