7 signs your switchboard needs upgrading (and why Brisbane homes are usually first in line)

Hi, John from Voltech here. I do at least one switchboard upgrade a week in suburbs like Carina, Carindale and Camp Hill, and they almost always start with the same phone call: "the power keeps going off when my wife turns on the heater."

Below is the list I run through on the phone, before I've even left the depot. If your home ticks two or more, it's time. If it ticks five or more, please don't wait for the seventh.

1. You still have ceramic fuses

If your "switchboard" is actually a panel of small ceramic fuses with screw-in caps and fuse wire wrapped around posts, that board is from the 1960s-70s and it has no place protecting a 2026 home. Ceramic fuses don't protect humans from shock, they don't trip fast enough to stop arc flashes, and most of them have been "upsized" over the decades by people running thicker wire to stop nuisance trips, which is exactly the wrong fix.

What I install: modern type 2 RCBOs (combined safety switch + circuit breaker) per circuit. One trip per circuit, fast acting, life-saving.

2. Breakers trip when normal appliances run

If turning on the heater, the kettle and the washing machine within five minutes blacks out the laundry, your house has too few circuits for too much load. The fix isn't a bigger breaker, that's how houses burn down, it's splitting the load across more circuits. Most Brisbane homes built before 2000 have one or two power circuits running the entire house. Modern code is closer to one circuit per major area, plus dedicated circuits for the kitchen, the laundry, the AC and the EV charger.

3. Burnt plastic smell or scorch marks

This is the one that makes me drop everything. If you can smell burnt plastic at the switchboard, or you can see black scorch marks around the meter or fuses, turn the main switch off and ring 0411 054 811 immediately. That's an active fire risk. We do same-day make-safes anywhere in our core suburbs and won't leave the house until it's safe to keep living in.

4. No safety switches on every circuit

Look at your switchboard. Are there buttons labelled "T" or "Test"? Count them. Now count the circuit breakers. If those numbers don't match, you don't have safety switches on every circuit, and that's the device that saves your life when an appliance faults to live. Most Brisbane homes have one shared safety switch for power circuits, none for lighting. We fix that with one RCBO per circuit.

5. Buzzing or humming from the board

Switchboards are silent when they're happy. Audible humming usually means a loose terminal heating up, a failing breaker, or a transformer in a meter that's on its last legs. None of those things get better by themselves. Get someone to look.

6. Board is over 25 years old

Polycarbonate enclosures, 1980s-vintage Olex / Federal Pacific gear, faded label sheets, if it looks like it could've been the day your house was built, it probably was, and 30+ years of Brisbane heat-cycle has fatigued every plastic component in there. RCDs in particular drift out of tolerance after 10 to 15 years and stop reliably tripping at 30mA.

7. You're adding solar, an EV charger or batteries

This is the modern reason I get the call. A 7kW EV charger pulls almost as much current as a small unit. Solar adds back-feed protection requirements. Batteries add isolation and labelling rules. It's rarely worth bolting any of that onto a 1980s board, the labour to make it compliant is half the cost of a new board, and you still end up with a board nobody else will ever want to work on.

What I do when I get the call

When you ring Voltech for a switchboard upgrade in Brisbane, here's what happens:

1. Free, in-home assessment. I come to your house, take photos, do a load calc.
2. Fixed-price written quote, usually within 24 hours, no "time and materials".
3. Energex paperwork. I lodge it for you, you don't ring the energy company.
4. One-day install, most Brisbane homes are done in 4 to 6 hours, with power off for around 2.
5. Certificate and photos. Form 16 / CES, plus photos of every label, emailed before I leave the driveway.
6. Lifetime workmanship warranty, if anything I touched fails, I come back, no charge.

If you've got two or more of the seven signs above, book a free switchboard quote, or just ring me on 0411 054 811. There's no charge to ask, and I'll give you a straight answer on whether you can ride your existing board for another five years or whether it's time.

, John