A consumer unit is designed to keep you safe by disconnecting power when it detects a fault. It is normal for a protective device to trip occasionally for a clear reason, but repeated or unexplained problems should never be ignored.
1. Circuits trip repeatedly
Repeated tripping can indicate an appliance fault, overloaded circuit or wiring problem. Avoid simply resetting the switch over and over; an electrician can identify the underlying cause.
2. There is heat, buzzing or an unusual smell
A consumer unit should operate silently and should not feel excessively warm. Buzzing, discolouration or a hot plastic smell requires urgent attention.
Safety first: If you see smoke, sparks or signs of burning, switch off the main supply only if it is safe and call an emergency electrician.
3. It uses an older fuse-box design
Older equipment is not automatically unsafe, but it may lack the protection found in a modern consumer unit. A professional inspection can establish its condition and whether an upgrade is sensible.
4. You have had significant building work
Extensions, kitchen renovations, heat pumps and EV chargers all change the demands on an electrical installation. The supply and protective equipment should be assessed as part of the project.
5. Labels are missing or unclear
Clear circuit labels make isolation quicker and safer. If you cannot identify which switch controls an area, ask an electrician to trace and label the circuits.
6. The property has not been inspected recently
Electrical installations deteriorate and property use changes. If you do not know when the system was last inspected, an EICR provides a useful condition report.
7. You are unsure
You do not need to diagnose an electrical problem yourself. When something feels wrong, a qualified electrician can check it safely and explain the options.
Need professional electrical advice?
Arrange a clear, professional assessment with TJG Electrical Services Ltd.