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Your switchboard is one of those things you never think about until the lights go out. It sits quietly in a cupboard or on the side of the house, doing a pretty important job: managing every bit of power that runs through your home.
The trouble is, a lot of Melbourne homes still have switchboards that were installed decades ago, long before air conditioners, induction cooktops and EV chargers became part of everyday life. Older boards weren’t built for that kind of demand, and they often lack the safety features we now rely on.
So how do you know when to upgrade your switchboard? Here are seven signs you need a switchboard upgrade, and what to do if you spot them.
Quick Answer:
- Frequent tripping, burning smells, sparks and flickering lights are all common switchboard problems that need a licensed electrician’s attention.
- Old ceramic fuses and a missing safety switch are strong signs your board is out of date.
- Adding big appliances, solar or an EV charger often means your board needs more capacity.
- If you notice heat, scorch marks or a burning smell, stop using the affected circuit and call an electrician straight away.
How to Know if You Should Upgrade Your Switchboard
1. Your Power Keeps Tripping
The odd trip is normal. Plug in the kettle, toaster and heater at once, and your board might cut power to protect the circuit. That’s it doing its job.
But if it’s happening regularly, especially when you’re running everyday appliances, it’s a sign your switchboard is struggling to keep up. Frequent tripping can point to overloaded circuits, a fault in your wiring or a board that simply doesn’t have the capacity for how your household uses power today.
2. You Notice a Burning Smell
This is one to take seriously. A burning or melting plastic smell near your switchboard can mean wires or connections are overheating.
If you notice it, don’t wait to see if it goes away. Turn off the affected circuit if it’s safe to do so and call a licensed electrician. Overheating connections are one of the more dangerous switchboard problems, as they can lead to an electrical fire.
3. You Still Have Ceramic Fuses
Open your switchboard. If you see white ceramic fuse holders with wire running through them, you’ve got an old rewireable fuse system.
These were standard in Melbourne homes for decades, but they’re well behind modern safety standards. When a fuse blows, it has to be rewired by hand, and it’s far too easy to use the wrong thickness of wire, which defeats the whole purpose of the fuse.
Older boards like these are sometimes mounted on backing panels that contain asbestos, too. That’s not something to touch or drill into yourself, but it’s another good reason to have a professional take a look.
4. There’s No Safety Switch
A safety switch, also called an RCD (residual current device), cuts power in a fraction of a second if it detects current leaking to earth, like through a person. It’s the feature most likely to prevent a serious electric shock.
Many older homes have no safety switches at all, or only have one covering the power points and not the lights. If you’re not sure, look for switches labelled “RCD” or with a “Test” button on them. If you can’t find any, it’s a clear sign you need a switchboard upgrade.
5. Your Lights Flicker or Dim
Do your lights dim when the air conditioner kicks in or the dryer starts? Occasional flickering can be a simple globe issue, but if it happens across the house or when big appliances turn on, your switchboard may be under strain.
It can also point to loose connections, which can heat up over time. Either way, it’s worth getting checked rather than living with it.
6. You Can See Sparks, Scorch Marks or Hear Buzzing
Your switchboard should be quiet and cool to the touch. If you hear buzzing or crackling, see sparks, or notice brown or black scorch marks around switches or fuses, something isn’t right.
These are signs of electrical arcing or failing components, and they shouldn’t be ignored. Keep clear of the board and get a licensed electrician out as soon as you can.
7. You’re Adding New Appliances or Renovating
This one’s less of a warning sign and more of a heads-up. If you’re planning a kitchen renovation, installing ducted heating and cooling, adding solar panels or getting an EV charger, your existing board may not have the space or capacity to handle it.
It’s one of the most common answers to the question of when to upgrade a switchboard. Sorting it out before the new work goes in saves you double handling, and it means your new appliances are running on a setup designed for them.
What’s Involved in a Switchboard Upgrade?
A switchboard upgrade usually means replacing your old fuses with modern circuit breakers, adding safety switches across your circuits and making sure the board can handle your household’s power needs, now and in the future.
For most homes, the work can be done in a day, though your power will need to be off for part of it. Once the job’s done, your electrician should provide a Certificate of Electrical Safety, which is required in Victoria for this kind of work.
Every switchboard upgrade must be carried out by a licensed electrician. It’s not a DIY job, no matter how handy you are.
Not Sure If Your Switchboard Needs an Upgrade?
If you’ve noticed one or more of these signs, or you simply don’t know how old your switchboard is, an electrical safety check is a great place to start. We’ll look over your board and wiring and let you know what needs attention, if anything.
It’s also worth booking one if you own a rental property, as Victorian landlords are required to have electrical safety checks done every two years.
Upgrade Your Switchboard With O’Shea Electrical
Switchboard problems rarely fix themselves, and the longer they’re left, the bigger the risk. Our licensed electricians can assess your current setup, explain your options in plain English and get your home running safely again.
Find out more about our switchboard upgrades, or get in touch with the team to book a time that suits you.
