Electrical faults often give you warning before they become dangerous. Knowing the signs can prevent a fire, a shock, or an expensive failure — and tells you when it's time to stop and call a licensed electrician.

Call an electrician if you notice:

• Burning smell or scorch marks around outlets or the switchboard.
• Power points warm to the touch, or that spark when you plug in.
• Frequent tripping of circuits or blown fuses.
• Flickering or dimming lights that aren't a faulty globe.
• Buzzing sounds from switches, outlets, or the board.
• Mild shocks or tingles from appliances or switches.
• An old fuse box with ceramic fuses and no safety switches.

Don't DIY electrical work

In Australia it's illegal — and dangerous — for unlicensed people to do most electrical work. A burning smell or a shock is a stop-now signal: turn off the power at the board if safe, and call a licensed electrician.

A safety switch, or RCD (residual current device), is one of the most important safety features in your home — and older Sydney homes often don't have enough of them.

What a safety switch does

It constantly monitors the flow of electricity and cuts the power in a fraction of a second if it detects a leak — such as current passing through a person. That speed is what prevents a fatal shock.

Safety switch vs circuit breaker

• Circuit breaker: protects wiring from overload and short circuits.
• Safety switch (RCD): protects people from electric shock.

You need both — they do different jobs.

How many do you need?

Ideally, safety switches should cover all the circuits in your home, not just a couple. A licensed electrician can check your board and fit compliant RCDs where they're missing — a small job that genuinely saves lives.

Most home electrical incidents are preventable. This simple checklist helps you spot common hazards early — and know when to bring in a licensed electrician.

Around the home

• Do you have working safety switches (RCDs) on your switchboard?
• Are any power points cracked, loose, warm, or discoloured?
• Are you relying on double adaptors and power boards everywhere?
• Are cords frayed, or run under rugs where they can overheat?
• Are wet areas (kitchen, bathroom, outdoors) properly protected?

Test your safety switches

Press the "test" button on your safety switches every few months — the power should cut instantly. If it doesn't, call an electrician.

When in doubt, get it checked

An electrical safety inspection is inexpensive peace of mind, especially for older homes, rentals, and recently purchased properties across Sydney. A licensed electrician can check the lot in one visit.

A power surge is a sudden spike in voltage — from lightning, grid issues, or large appliances switching. A big one can destroy TVs, computers, appliances, and anything with a circuit board, all at once.

Power boards aren't enough

Cheap power-board surge protectors only guard whatever's plugged into them, and they wear out. They won't protect hard-wired items like your oven, air-con, or hot water system.

Whole-home surge protection

A surge protection device fitted at your switchboard defends your entire home at the point where power enters — a far more reliable approach for protecting expensive electronics and appliances.

Is it worth it?

If you've invested in electronics, solar, or smart-home gear, whole-home surge protection is cheap insurance against a single expensive event. A licensed electrician can fit one at your board and advise what suits your Sydney home.