Electrical faults rarely announce themselves. They build quietly behind your walls and inside your switchboard, and by the time something obvious happens, the problem has often been developing for months. Knowing the early warning signs can save you money, and in the worst cases prevent a house fire. This guide covers the signs your Perth home has a wiring problem, what usually causes them, and when it is time to call a licensed electrician for professional electrical fault finding in Perth.
Perth has a large stock of homes built from the 1950s through to the 1980s, particularly across the City of Stirling. Many still have some of their original wiring, and electrical systems from that era were never designed for the load a modern home puts on them – multiple air conditioners, induction cooktops, EV chargers, home offices, and a power point in every room. On top of that, decades of Perth heat, the occasional rodent in the roof space, and general ageing all break down cable insulation over time. The result is that older homes are far more likely to develop the faults below. If your home is more than 25 years old and has never had an electrical inspection, it is worth booking one even if nothing seems wrong.
If your lights flicker or dim when an appliance starts up, it can point to loose wiring, an overloaded circuit, or a failing connection. An occasional flicker across the whole house during a storm is usually the grid; repeated flickering in one room is more likely a wiring issue worth investigating.
Power points and light switches should never feel warm to the touch. Warmth, along with brown or yellow scorch marks around a socket, is a sign of a loose or deteriorating connection generating heat behind the wall. This is one of the more serious signs and should be checked promptly.
A burning smell, or a distinct fishy odour, coming from a power point or the switchboard usually means insulation is overheating and melting. This is a genuine fire risk. Turn off the circuit if you can and call an electrician straight away – do not wait.
Electricity should be silent. A buzzing, crackling or sizzling sound from a switch, power point or the switchboard indicates arcing, where electricity is jumping across a loose connection. Arcing generates intense heat and is a leading cause of electrical fires.
A safety switch that trips repeatedly is doing its job – it has detected a fault. While a single faulty appliance is the most common cause, persistent tripping with nothing plugged in points to a wiring fault that needs tracing.
If fuses blow or breakers trip often, your circuits may be overloaded for the way you use the home, or there may be a fault on the circuit. In older homes this frequently signals that the switchboard is undersized for modern demand and due for an upgrade.
Any tingle or small shock from a tap, an appliance, or a metal fixture is a serious warning of an earthing fault, where electricity is finding an unintended path. This is dangerous and needs immediate attention from a licensed electrician.
Fault finding is diagnostic work. Because the cause is hidden, a licensed electrician uses testing equipment – insulation resistance testers, clamp meters and thermal imaging – to trace a fault back to its source without pulling your whole house apart. The process usually runs like this:
Because the scope is unknown at the start, fault finding is usually charged by the hour rather than as a fixed price. A good electrician will give you a sensible cap up front, so the cost never runs away from you.
If you notice any of the serious signs – a burning smell, scorch marks, buzzing, or a shock – switch off the affected circuit at the switchboard if it is safe to do so, and call a licensed electrician. Do not keep using the circuit, and never open up a power point or switch yourself.In WA, electrical work must be carried out by a licensed electrician, both for your safety and because unlicensed work can void your home insurance if it later causes a fire. Building and Energy (WA) provides information about electrical licensing and safety requirements.
If something about your home’s electrics does not feel right, trust that instinct. On Point Electrical Perth provides expert electrical fault finding across Perth and the City of Stirling, with the right diagnostic equipment, honest advice, and licensed, guaranteed repairs. We find the cause, explain it clearly, and fix it properly. Call 0427 440 393 or book online, and for urgent faults our 24/7 emergency team is available day or night.
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