Electrical fault finding · Brisbane southside
Electrical fault finding in Brisbane. Found properly. Fixed right.
Safety switch keeps tripping? Lights flickering, or power points gone dead? We test until we find the real cause, tell you the repair price before we touch it, and get your power back on. Same-day where we can, Monday to Friday.
5.0★★★★★from 52 Google reviews
- Licensed, QLD licence 90386
- Repair priced before work starts
- Southside and inner east locals
The M-Tech team tracing a fault at the switchboard
“
Great professional service, on time and sorted all the issues needed. Fault finding tripping lights and other work. Even come back to assist in other work and good rates.
★★★★★Ben K., Google review
Licensed and insured
QLD electrical contractor licence 90386.
Price agreed first
You approve the repair price before we start.
Same-day where we can
Monday to Friday. We confirm a time when you call.
Sound familiar?
What’s happening with your power?
Any of these are worth a call. A couple of them can’t wait. Tell us which one you’ve got and we’ll know where to start.
Safety switch keeps tripping
It resets, then drops out again, or it goes every time one appliance runs. Usually a faulty appliance, damaged cable or moisture in a circuit.
Lights flicker or dim
Often a loose connection, a tired neutral or an overloaded circuit. If the whole house is doing it, get it checked sooner rather than later.
Power point dead or warm
Stop using it and have it tested. A warm or scorch-marked outlet isn’t normal and can mean arcing behind the plate.
Part of the house has no power
The rest of the place is fine, so it’s not the street. Think tripped circuit, loose terminal or a broken cable run.
Burning smell or buzzing
Switch off at the main if it’s safe to reach, keep clear and call us. This one is urgent.
Sparks or a hot switch
That’s a fire risk. Keep everyone away from it, don’t touch it, and get it looked at straight away.
Tripping and flickering
Why does my power keep tripping?
When your power keeps tripping, the switchboard is cutting a circuit on purpose. It has picked up too much load, a short, or current leaking to earth. The usual culprits are an overloaded circuit, a faulty appliance, damaged or wet wiring, or a breaker that’s worn out. So the first step in any electrical fault finding job in Brisbane is simple: which switch dropped? That tells us where to start.
Why a circuit breaker keeps tripping
A circuit breaker trips on overload or a short. Overload is the common one in older Brisbane homes, for example when the kettle, air fryer and a heater all share the same kitchen circuit. A short in a cable, a power point or an appliance, on the other hand, trips it instantly. Breakers also wear out and start tripping under normal load.
Is it dangerous if a circuit breaker keeps tripping? The breaker is doing its job. The risk is the cause behind it, because overloaded cable runs hot and a short can scorch terminals. So reset it once. If it trips again, leave it off and get it tested.
Safety switch keeps tripping
A safety switch (RCD) trips when it senses current leaking to earth, often from a faulty appliance, a wet outdoor power point or a failing hot water element. That’s a different fault to an overload, and therefore it gets a different test. Our safety switch repairs page covers it in detail.
Lights flickering?
One flickering globe is usually the globe itself, or an LED that doesn’t suit the dimmer. However, flickering across several rooms, or lights that dim when the oven or air con kicks in, can point to a loose connection or a failing neutral. That one is worth testing before a connection overheats.
What you can safely check first
- Check whether the neighbours have power. If the whole street is out, it’s a network outage.
- Open the switchboard and note which switch dropped: a circuit breaker or a safety switch.
- Unplug everything on that circuit, then reset the switch once.
- If it holds, plug things back in one at a time until it trips again. That’s your suspect.
- If it trips with nothing plugged in, or you smell burning, leave it off and call us on 1800 549 545.
The Queensland Electrical Safety Office explains how safety switches protect you at home.
Smoke, sparks or a burning smell right now?
If it’s safe, turn off the main switch at the board and keep everyone clear. If there’s fire or someone’s hurt, call 000 first. Then give us a ring.
Cost and quoting
What electrical fault finding costs in Brisbane
Most electricians charge a call-out fee, then bill by the hour while they look for the fault. We keep it simpler. Electrical fault finding in Brisbane with M-Tech starts with a fixed diagnostic fee of $200 + GST, which covers the call-out and the first 20 minutes on site. If the fault takes longer to track down, we tell you before going any further. We confirm it on the phone before anything is booked. After that, the repair is priced separately, once we know exactly what’s wrong.
1
Diagnostic fee: $200 + GST on Non-Urgent Bookings
One fixed amount that covers the call-out, testing your circuits and pinpointing the cause. You know it before we book, so the first bill is never a surprise.
2
Your repair price, upfront
Once we know what’s wrong, we price the fix and explain it in plain English. Nothing starts until you approve it, and if something unexpected turns up, we stop and talk to you first.
3
You decide
Approve it and we get on with it, often in the same visit. Decide not to go ahead and you only pay the diagnostic fee.
How it works
A clear next step at every stage.
01
Tell us what’s happening
What stopped working, when it started and what was running at the time. Also, a photo of the switchboard helps.
02
Isolate the circuit
First, we check the board, then switch circuits off one at a time to narrow down where the fault sits, even when it comes and goes.
03
Test, then price the repair
Test results confirm the cause. You get the repair price upfront, and nothing goes ahead until you approve it.
04
Repair and re-test
Then we fix it at the source, re-test the circuit and explain what went wrong before we leave.
The faults we trace most
Common faults, and what a fault finding electrician checks
Every fault is different, but most jobs we see fall into one of these three. Here’s what we test for each one, so you know it’s not guesswork.
Circuit breaker or safety switch keeps tripping
A safety switch trips when it detects current leaking to earth. The cause could be a faulty appliance, damaged cable insulation, moisture in a junction box or a failing hot water element. A circuit breaker trips from overload or a short. We test each circuit at the switchboard to pin down exactly which part is causing it.
What we check
- RCD trip-time and isolation testing on each circuit
- Appliance-by-appliance fault isolation
- Insulation resistance testing on suspect circuits
- Earth fault finding and repair
- Breaker load checks for overload
- Switchboard connections inspected and tightened
Flickering lights and power fluctuations
Flickering or dimming can point to a loose connection, a deteriorating neutral, a heavily loaded circuit or a fault at the board. Persistent flicker isn’t just annoying. It can mean arcing at a connection, which is a genuine fire risk. We trace it from the fitting, through the wiring, back to the switchboard.
What we check
- Light fitting and connection checks
- Neutral integrity testing across the circuit
- Voltage drop testing under load
- Switchboard terminals inspected and re-torqued
- Circuit isolation to find the affected section
- Loose, corroded or damaged connections repaired
Dead power points and partial power loss
When a power point stops working, or one part of the house loses power, there’s usually a break somewhere in the circuit. It might be a tripped breaker, a loose terminal, a damaged cable run or a bad junction. We test continuity along the whole circuit to find the exact break, and we don’t replace cable unless it actually needs it.
What we check
- Continuity testing from the board to the outlet
- Power point wiring and terminal checks
- Cable fault location with insulation resistance testing
- Junction box and connection inspection
- Damaged cable sections replaced where needed
- Full circuit re-test after the repair
Recent fault finding jobs from our records
Here are real fault finding jobs from our records, with the suburb, what we found and how we fixed it.
Carindale
FoundPower kept tripping in the kitchen and some rooms upstairs. The pool pump power point was also on that circuit.
FixedWe traced it to a junction box with oxidised copper inside, so we cleaned the wires back and remade the joins. Then we tested the safety switch.
Mount Gravatt East
FoundTenants had no hot water after heavy rain, because moisture had got into the power point inside the hot water cupboard.
FixedWe re-terminated and tested it, then turned the hot water back on. We also replaced a downlight while we were there.
Coorparoo
FoundThe hot water kept tripping its circuit. So the owner asked us to check the breaker, the thermostat and the element.
FixedIt was none of those. Instead, a water pump plugged into the same circuit was causing the trip, so we unplugged it and the tripping stopped.
Bulimba
FoundThe front lights tripped on wet nights, because rain had got inside the sensor light.
FixedWe replaced the sensor light, which fixed the nuisance tripping in wet weather.
Eight Mile Plains
FoundThe lighting circuit kept tripping. Wiring on the roof had been run without protection, so the sun had broken down the insulation.
FixedWe repaired the damaged cable, then ran it in heavy-duty conduit. We also swapped a fan for an LED batten light.
Runcorn
FoundThe power circuit kept tripping the safety switch, and the owner suspected a power point.
FixedWe traced the trip to a faulty appliance, most likely the washing machine. We also repaired the power point.
More electrical fault finding jobs across Brisbane
Norman Park
FoundA lighting circuit was playing up, and testing pointed to the dimmer switch.
FixedWe replaced the faulty dimmer with an LED-compatible one, then checked every connection on the circuit.
Eight Mile Plains
FoundThe lights and power were off, so the owners suspected the safety switch. However, testing found an earth fault on the lighting circuit.
FixedThe fault was in the main bedroom ceiling fan. So we took it down and installed the replacement fan the owners supplied.
Acacia Ridge
FoundThe main switch had tripped and wouldn’t turn back on.
FixedThe 4-pole safety switch (RCBO) had failed, so we replaced it. Then we checked the connections and turned every circuit back on.
Fault finding photos from these jobs
The short answer
What is electrical fault finding?
Reviewed by MJ, licensed electrician at M-Tech. QLD electrical contractor licence 90386. Updated September 2026.
Electrical fault finding is how a licensed electrician works out exactly what’s causing an electrical problem, then fixes that cause instead of resetting the switch and hoping. That’s because the symptom and the cause are often in different places: a safety switch in your meter box can trip because of a hot water element, a garden light full of water or a cable a rat has chewed in the roof.
The electrical fault finding Brisbane homeowners book with us is built on proper test gear: insulation resistance testing, earth continuity checks, polarity checks and RCD trip-time tests. As a result, we know where the fault is before we touch anything.
What affects the repair price
- Whether the fault is constant or comes and goes
- Access to the cable run, like roof space, subfloor or high ceilings
- How many circuits are involved
- Parts needed, such as breakers, RCBOs or new cable
- The age and condition of the existing wiring
At a glance
- What it is: finding the real cause of an electrical fault before any repair.
- How it’s charged: a fixed $200 + GST diagnostic fee, then a repair price you approve before work starts.
- Timing: same-day where we can, Monday to Friday. Many faults are found and fixed in the one visit.
- Where: Brisbane’s southside and inner east, from Bulimba and Hawthorne through to Springwood.
- Who turns up: a licensed, insured M-Tech electrician (QLD licence 90386).
- Call now if: you smell burning, see sparks or the safety switch won’t reset.
Speed up your quote
- A photo of your switchboard
- Which rooms or outlets have lost power
- When it started, and what was running
Related repairs
Found the fault? Here’s where it often leads.
Safety switch repairs and upgrades
Repeated tripping, old RCDs and adding protection to circuits that don’t have it.
Switchboard upgrades
Old ceramic fuses, or a board that’s run out of room. Sometimes an upgrade is the proper fix.
Power point repairs and new outlets
Dead, loose or scorched outlets replaced, and new points where you actually need them.
Lighting repairs and installation
Failed fittings and transformers, flickering circuits, and LED upgrades.
Hot water system fault finding
Hot water tripping the safety switch or not heating? We test the electrical side.
Urgent electrical issues
What to do right now when it can’t wait.
Why M-Tech
Local electricians who explain what they found.
We’re a small Brisbane team, so the electrician who turns up for your electrical fault finding actually cares how the job ends. There’s no call centre, no jargon and no upsell. Instead, you get the test results explained in plain English.
- Licensed and insured. QLD electrical contractor licence 90386.
- Price before work. A fixed $200 + GST diagnostic fee, then a repair price you approve.
- Proper test gear, not trial and error, so the fault stays fixed.
- Tidy and respectful in your home. We clean up before we go.
Google reviews
Rated 5.0 by 52 Brisbane customers
Where we work
Electrical fault finding across Brisbane’s southside and inner east
We’re based on the southside and spend most days between the river suburbs and Springwood. Not sure if we reach your suburb? Give us a call anyway. Chances are we still get out to you.
Inner east and riverside
Most days start in the inner east, around Norman Park, Bulimba and Cannon Hill.
Inner south
Coorparoo, Camp Hill and Carindale are regular stops between jobs.
South and south-east
We also head south through Mount Gravatt and Rochedale to Springwood.
Good to know
Electrical fault finding in Brisbane: your questions, answered.
Something specific? Call 1800 549 545 and ask an electrician.
How much does an electrician charge to find a fault?
We charge a fixed diagnostic fee of $200 + GST, which covers the call-out and the first 20 minutes on site. If the fault takes longer to find, we tell you before going further. Then we price the repair and you approve it before any work starts. So there’s no surprise bill.
Can you come out today?
Often, yes. We do same-day where we can, Monday to Friday. Call early and we’ll give you an honest answer on timing.
Can you find and fix the fault in one visit?
Often, yes. Many faults are found and fixed in the one visit. However, if a part needs ordering, or the repair turns out bigger than expected, we’ll explain that before going any further.
How do I find an electrical fault in my house?
Check whether it’s just your place or the whole street first. Then see if the safety switch resets and stays on. If it trips again, unplug your appliances one at a time to spot the culprit. If it still won’t hold, or you smell burning or see sparks, stop there and call a licensed electrician. That part is what we’re trained for.
Why does my safety switch keep tripping?
Usually a faulty appliance, damaged cable or moisture in a circuit. Unplug everything on that circuit and reset it. If it holds, plug things back in one at a time. If it still trips with nothing plugged in, the fault is in the wiring and it’s time to call us.
Is it dangerous if my circuit breaker keeps tripping?
The trip itself is the protection working. What’s dangerous is ignoring it, because repeated overloads heat cable and connections, and a short can scorch a power point or the switchboard. Reset it once. If it trips again, leave it off and get the circuit tested.
Why are my lights flickering?
A single flickering light is usually the globe, or an LED that doesn’t match the dimmer. If lights flicker across several rooms, or dim when a big appliance switches on, it can be a loose connection or a failing neutral. That’s worth getting tested, because loose connections run hot.
Why does my power trip when it rains?
Water gets into outdoor power points, garden lights, junction boxes or damaged cable, and then the safety switch sees the leakage to earth. It’s common in Brisbane storm season. It needs finding and fixing, because otherwise the next downpour will do the same thing.
Is it my house or the street?
Check whether the neighbours have power, then look at your switchboard. If a safety switch or breaker has dropped, the problem is at your place. If the whole street is out, it’s a network outage, so check your local power outage map rather than calling an electrician.
Should I keep resetting the safety switch?
No. Once or twice is fine to see if it holds. But if it keeps tripping, it’s doing its job and protecting you from a fault. So leave it off and get the circuit tested.
Is a burning smell from a power point an emergency?
Yes. If it’s safe to reach, turn off the power at the main switch, keep everyone clear and call us on 1800 549 545. If there’s smoke or fire, call 000 first.
Request a callback
Tell us what’s happening. We’ll take it from there.
Leave four quick details and we’ll call you back to talk it through, confirm the diagnostic fee and lock in a time. Same-day where we can, Monday to Friday.
Or email admin@mtechelectricalqld.com.au
What happens next
- We call you back, usually the same working day
- We ask a few questions and confirm the fee
- We book a time that suits you
“Excellent service from M-Tech Electrical Solutions! MJ attended and quickly diagnosed the issue with our safety switch.”
★★★★★ Michael B., Google review
Request a callback
Four fields, under a minute. Urgent? Call instead.
Sending this doesn’t lock in a booking. We’ll call to confirm a time first.
5.0★★★★★ from 52 Google reviews
Licensed and insured, QLD electrical contractor licence 90386