Is it safe to bypass my RCD protection to stop constant nuisance tripping – Advice from Electriman, North London Electricians

It is completely understandable to feel frustrated when your RCD keeps tripping, especially if it happens repeatedly or at inconvenient times. However, bypassing your RCD is one of the most dangerous things you could do in your home, and it is also illegal under UK electrical safety law. Here is what you need to know.

What the RCD actually does

An RCD, or Residual Current Device, monitors the flow of electricity in and out of a circuit. The moment it detects even a tiny imbalance — as little as 30 milliamps — it cuts the power in under 40 milliseconds. That is fast enough to prevent a fatal electric shock. Without it, a fault that puts you in contact with a live part could kill you before your heart beats again.

Why it keeps tripping

The RCD is not the problem. It is doing exactly what it is designed to do. Common causes of nuisance tripping include:

A faulty or ageing appliance leaking a small amount of current to earth

Damp getting into a socket, light fitting, or cable junction

A damaged or degraded cable, especially in older properties

Too many appliances on one circuit causing cumulative leakage current

A recently installed appliance with a large internal capacitor, such as some washing machines or dishwashers

What you can safely check yourself

Unplug everything on the circuit that keeps tripping, then try resetting the RCD. If it stays up, plug appliances back in one at a time until it trips again — that appliance is

Need a qualified electrician in North London?

Electriman covers Mill Hill, Barnet, Finchley, Edgware, Enfield, Watford and surrounding areas. All work is Part P certified and fully insured.