Why does summer specifically cause electrical problems?

It's not the heat directly — it's the load. Air conditioners, pool pumps, and fans all running at once, often for the first time since last summer, puts more draw on a switchboard than the rest of the year combined. Anything marginal tends to show up under that load.

Should I get my switchboard checked every year before summer?

Not necessarily every single year if nothing's changed, but definitely worth it before the first summer with a new aircon, pool, or any other high-load addition — and worth a look if last summer had any tripping you brushed off.

Can an overloaded circuit actually cause a fire?

Yes, if it's allowed to persist — that's exactly what circuit breakers and fuses are there to prevent. A circuit that trips under summer load is doing its job by tripping. The problem is if someone just keeps resetting it instead of asking why.

Preparing Your Home's Electrics for Summer

Summer is when a switchboard that's been quietly fine all year suddenly isn't. Not because anything's dramatically wrong, but because this is the one season everything gets asked to run at once.

Why Summer Specifically

Air conditioning is the big one — a single split system can draw several times what a normal room circuit is used to, and a ducted system more again. Add a pool pump running most of the day, ceiling fans in every room, and everyone's devices charging overnight in the heat, and you've got the year's heaviest load arriving all at once, often for the first time since last summer.

The Checklist

Check the switchboard before the first heatwave, not during it. If last summer had any breakers tripping that you just reset and moved on from, that's worth actually looking into now, while it's not 40 degrees and urgent.

Confirm your aircon is on its own dedicated circuit. Older installs sometimes share a circuit with general power points, which is exactly the setup that trips under load. A dedicated circuit, sized for the unit, is the fix.

Have pool equipment checked if it's older or was installed by someone other than an electrician. Pool pumps and lighting have specific safety requirements given the obvious water-and-electricity combination, and it's not a job to assume was done right just because it's been running fine.

Test your safety switch. Every switchboard with one should have a labelled test button — press it, confirm it trips the power, then reset it. If nothing happens, or you can't find one at all, that's worth a call before summer, not after something happens.

Think about capacity, not just circuits, if you're adding anything new this year — a second aircon, a bigger pool pump, an EV charger. The switchboard that handled last year's load might not have room for this year's addition.

If Something Already Tripped Last Summer

A breaker that tripped once under unusually heavy load isn't necessarily a crisis. A breaker that trips repeatedly, or a safety switch that won't reliably reset, is the switchboard telling you something before it becomes an actual outage on the hottest day of the year — which is, reliably, when nobody wants to be dealing with it.

If any of this sounds familiar, our Switchboard Upgrades page covers what a proper capacity check involves, or get in touch before the heat arrives rather than during it.