Circuit Breaker Electrician Sydney
Level 2 Accredited Electricians. Trading Since 1999.
Need a circuit breaker electrician in Sydney? We find out why your breaker or safety switch keeps tripping, repair or replace faulty breakers, and fit the safety switches your switchboard is missing.
Dave Fenech Electrical Services has been trading since 1999 from St Marys. We’re a Level 2 Accredited Service Provider, so if the fault turns out to be the switchboard, the meter box or the mains, the same team can fix that too.
Circuit Breaker Services Across Sydney
From One Tripping Breaker to a Full Switchboard
A breaker that won’t stay on is telling you something. We test the circuit, find the cause and fix it properly instead of just resetting it.
Tripping Breaker Fault Finding
Circuit Breaker Replacement
Safety Switch (RCD) Upgrades
Ceramic Fuse to Breaker Upgrades
New Circuits and Breakers
Client Testimonials – Read What Others Have To Say About Dave Fenech Electrical Services
Contact Our Friendly & Experienced Team
Get a Free Quote for Your Circuit Breaker Repair
✓ Tripping breakers and safety switches ✓ Licensed and insured Level 2 electricians ✓ Servicing all areas across Sydney
When to Call a Circuit Breaker Electrician
One trip after a storm or a kettle and toaster running together is normal. These four signs aren’t, and they’re worth a call.
It Trips Again Straight Away
A breaker that trips the moment you reset it usually points to a short circuit or earth fault.
It Trips With Nothing Running
If the circuit trips with everything unplugged, the fault is likely in the wiring or the breaker.
Heat, Buzzing or Burn Marks
A warm, buzzing or scorched breaker is a fire risk. Leave it off and call us.
Old Fuses or No Safety Switches
Ceramic fuses and boards without safety switches give you far less protection.
Why Your Circuit Breaker Keeps Tripping
A circuit breaker trips to protect the wiring. When it keeps doing it, there’s a reason, and finding that reason is our job. These are the causes we find most often in Sydney homes.
- Overloaded circuit. Too many heavy appliances on one circuit, like a heater, kettle and air fryer on the same power points. Our electrical overloading guide explains the warning signs.
- Short circuit. Active and neutral touching through damaged insulation, a loose connection or a faulty appliance. See what a short circuit is and why it’s dangerous.
- Earth leakage. Current escaping to earth through water in an outdoor power point, a damaged cable or a failing appliance. This trips the safety switch rather than the breaker.
- A faulty appliance. An old fridge, hot water system or pool pump can trip a circuit on its own.
- A worn or faulty breaker. Breakers do wear out, especially in older switchboards that have run hot for years.
If you want to try the simple checks first, our guide on why a breaker keeps tripping walks you through them. If it still trips, or trips straight away, leave it off and book an electrician.
Breaker or Safety Switch: Which One Tripped?
Look at the switchboard. A circuit breaker protects the cables from too much current, so it trips on overloads and short circuits. A safety switch, or residual current device (RCD), protects people. It trips when it senses current leaking to earth, which is what happens before someone gets a shock.
Many new boards use RCBOs, which combine both in one device for each circuit. When you call, tell us which switch dropped and what was running at the time. It helps us find the fault faster. Our RCD guide covers how safety switches work.
Circuit Breaker Repair and Replacement
We start with testing, not guessing. We isolate the circuit, test the wiring insulation and the breaker, and check the connections at the switchboard for heat damage. Then we tell you what we found and what it’ll take to fix.
A faulty breaker gets replaced with the correct type and rating for the circuit. A bigger breaker is never the fix for a circuit that keeps tripping. That just lets the cable overheat before anything trips.
Sometimes the breaker is fine and the problem is further down the line. A burnt power point, water in an outdoor light or a failing appliance gets repaired or isolated so the circuit can go back on safely.
Safety Switch Upgrades
Under the current wiring rules, AS/NZS 3000:2018, every final circuit in a new home needs safety switch protection. No more than three circuits can share one safety switch, and a home with more than one circuit needs at least two. That way one fault doesn’t black out the whole house.
Older Sydney homes often have one safety switch covering only the power points, or none at all. We can add safety switches to your existing board where it has the room and is in good condition.
The type of safety switch matters too. Type AC RCDs have been banned from new installations in Australia since 1 May 2023, according to Building Commission NSW. They can miss the DC leakage that solar inverters, EV chargers and LED drivers produce. New installations need Type A devices or better.
The NSW Government recommends pressing the test button on your safety switches every three months. If a safety switch doesn’t trip when you test it, have it checked.
When a Breaker Fault Means a Switchboard Upgrade
Most breaker faults are fixed at the circuit. Some point to a switchboard that has reached the end of its life. We’ll tell you straight which one you have.
An electrical switchboard upgrade is usually the better option when:
- the board still has ceramic rewireable fuses
- there’s no room for the safety switches or new circuits you need
- the board is old, scorched or might contain asbestos
- breakers are tripping because the house now uses more power than the board was built for
- you’re adding an EV charger, solar, a battery, ducted air conditioning or a pool
Replacing all the protection on a switchboard means the whole board has to have safety switch protection under the wiring rules. That’s why we quote a switchboard upgrade as one job instead of swapping breakers one at a time.
Being Level 2 matters here. If the meter box needs work, the consumer mains are too small or you need an upgrade to three phase power, we can disconnect the supply, do the work and reconnect it ourselves. You don’t need a second contractor.
Why Sydney Homeowners Choose Dave Fenech Electrical Services
We’ve been trading since 1999 from St Marys. We find the fault before we quote the fix, and we explain it in plain English.
A tripping breaker is often the first sign of a bigger problem. Because we’re a Level 2 Accredited Service Provider, we can handle everything from a single breaker to the switchboard, meter box and mains.
You’ll get a clear quote before work starts and a compliance certificate when it’s done.
Our Promise: We turn up when we say we will, fix the cause and leave your switchboard safe, labelled and tidy.
- Licensed & Insured Level 2 Electricians
- Accredited With Ausgrid and Endeavour Energy
- Clear Quotes, No Hidden Costs
- Circuit Breaker Repairs Across Sydney
- Dave Fenech Electrical Services Trading Since 1999
Contact Our Friendly & Experienced Team
Stop Your Breaker Tripping for Good
✓ Fault found and fixed, not just reset ✓ Compliance certificate on every job ✓ Free, no-obligation quotes
How Our Circuit Breaker Repairs Work
Here’s what happens from your first call to a circuit that stays on.
Step 1: Call us or book online. Tell us which breaker or safety switch tripped and what was running. A photo of the switchboard helps.
Step 2: We test the circuit and the board to find the cause.
Step 3: We explain the fix and give you a fixed price before any work starts.
Step 4: We fix it, test it and issue a compliance certificate.
Most single breaker repairs are done on the first visit. Bigger jobs like a switchboard upgrade get booked in for a day that suits you.
What Affects the Cost of a Circuit Breaker Repair?
We don’t quote blind, because the price depends on what’s causing the trip. These are the things that change it most.
- Finding the fault. A fault that shows up every time is quick to find. One that comes and goes takes more testing.
- Where the fault is. A burnt power point is a simple fix. A damaged cable inside a wall or under the house takes longer.
- The breaker itself. Standard breakers, RCBOs and three phase breakers all cost different amounts.
- Your switchboard. Some old boards can’t take new breakers or safety switches, so the board has to be replaced. See our switchboard upgrades page.
- Asbestos. Older meter boards can contain asbestos, which can’t be drilled or cut and needs careful handling.
- Extra circuits. Splitting an overloaded circuit or adding a dedicated circuit for an oven, air conditioner or EV charger is extra work.
We find the fault first and then give you a fixed quote after inspection. Send us a photo of your switchboard or call 02 9833 9566.
Circuit Breaker FAQs
Why does my circuit breaker keep tripping?
The usual causes are an overloaded circuit, a short circuit, earth leakage or a faulty appliance. Sometimes the breaker itself is worn out. Our breaker keeps tripping guide covers the checks you can do safely before calling us.
Is it dangerous if my circuit breaker keeps tripping?
The trip itself is the breaker doing its job. The fault behind it can be dangerous, especially if you notice heat, buzzing, a burning smell or scorch marks. Don’t keep resetting it. Leave it off and have it tested.
Can I reset a breaker that keeps tripping?
You can try once after unplugging everything on that circuit. If it trips again straight away, or trips with nothing running, leave it off. Resetting it over and over can damage the wiring and the breaker.
How do I know if a circuit breaker is faulty?
Signs include a breaker that won’t reset, trips with almost no load, feels warm, buzzes or has burn marks around it. An electrician can test it to confirm whether the breaker or the circuit is the problem.
Can I replace a circuit breaker myself?
No. In NSW, electrical wiring work must be done by a licensed electrician. Working inside a switchboard is dangerous even with the main switch off, because parts of the board stay live.
What is the difference between a circuit breaker and a safety switch?
A circuit breaker protects the wiring from too much current, so it trips on overloads and short circuits. A safety switch (RCD) protects people by tripping when current leaks to earth. An RCBO does both jobs in one device.
Should a bigger breaker be fitted if one keeps tripping?
No. The breaker is sized to protect the cable. A bigger breaker lets the cable carry more current than it’s rated for, which can cause overheating and fires. The fix is to find the fault or split the load onto another circuit.
Can you replace old ceramic fuses with circuit breakers?
Yes. This is done as a switchboard upgrade. When all the protection on a board is replaced, the wiring rules require safety switch protection, so the new board gets breakers and safety switches together.
Do I need a switchboard upgrade if one breaker is faulty?
Not always. A single faulty breaker in a good board can just be replaced. We recommend an upgrade when the board has ceramic fuses, no room for safety switches, heat damage or possible asbestos.
How often should I test my safety switches?
The NSW Government recommends pressing the test button every three months. The safety switch should trip straight away. If it doesn’t, have an electrician check it.
How much does a circuit breaker repair cost?
It depends on what’s causing the trip, where the fault is, the type of breaker and the condition of your switchboard. We test first and give you a fixed price before any work starts.
Do you install new circuits and breakers?
Yes. We add dedicated circuits for ovens, air conditioners, pool pumps and EV chargers, with the right breaker and safety switch for each one. If your board is full, we’ll talk you through the options.
Which parts of Sydney do you cover?
We work across Sydney from our base in St Marys, including Penrith, Blacktown, Parramatta, the Hills District, Liverpool, Campbelltown and the suburbs in between.
Book a Circuit Breaker Electrician Today
Dave Fenech Electrical Services finds out why your breaker or safety switch trips and fixes the cause. We replace faulty breakers, add safety switches and upgrade switchboards when the old one has had its day.
We’ve been trading since 1999, we give clear quotes and every job comes with a compliance certificate. Book a visit or call 02 9833 9566 for a circuit breaker electrician in Sydney.