Why breakers keep tripping — common causes, warning signs and what to do next
A breaker or RCD that trips occasionally can be frustrating — but repeated tripping can also be a safety warning, that something isnt quite right and that there's an underlying issue in need of addressing. Our expert electricians here at SA Metro Electrical have many years experience in guiding customers through issues such as these - sometimes it’s overload (too much demand on a circuit), and other times it’s a fault — wiring, moisture, a failing appliance, or a protection device issue - that is causing the issues you're experiencing.
This guide explains the common causes for breakers that keep tripping in plain English, as well as the warning signs that should be treated as urgent. It’s general guidance only — if anything feels unsafe, call a licensed electrician.
For non-urgent work, tell us your suburb and what the job is, and we'll confirm scope and the next step. SA Metro Electrical is based in Hendon and proudly services all Adelaide metro areas including Adelaide CBD, West Lakes, North Adelaide, Henley Beach, Unley, Norwood, Prospect, Mawson Lakes, Burnside and Glenelg.
Why “repeatedly resetting it” can be risky
If a breaker or RCD trips again after one reset, continuing to switch it back on can increase risk if there is heat, arcing, or an active fault condition present. If there is a fault that is affecting your breaker or RCD, then continuing to agitate it through repeated use can increase the likelihood of a serious issue occurring.
Overload
Multiple high-demand appliances share a circuit, pushing it beyond its rated capacity.
Why breakers keep tripping - common causes we find
Overload vs fault — simple explanation
Fault
Something is failing and protection devices are doing their job — tripping to prevent damage or danger.
Emergency electrician
If unsafe, contact 24/7
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Domestic electrician
Full fault finding and repairs
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Next steps
Switchboard upgrades
Capacity and protection review
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There are typically several possible reasons why breakers continually trip, regardless of the time of year or where your home or business is located:
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High-demand appliances sharing the same circuit
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Moisture issues — especially after storms or in damp areas like bathrooms and laundries
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Aging fittings or damaged outlets that are degrading over time
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Switchboard or protection device issues — older boards, or nuisance tripping from worn components
Any of these or other issues can be identified through a professional fault finding assessment. This is a service that our team of professional electricians have significant experience in providing - contact us today to discuss your needs, and see how we can help you.
We typically see breakers trip due to either overloads or faults within your system. The difference is a simple one - if your system and/or circuits have too many appliances or electrical loads operating on them, in order to prevent damage from occurring they can simply overload, and shut down. This is different to a fault, which can occur because of environmental issues such as dodgy wiring, presence of moisture, a failing appliance, or a protection device not working as expected. The only way to know for certain, if to schedule an inspection from a professional, qualified electrician.
What fault finding typically involves — high-level
Every property is different, but at SA Metro Electrical our checks commonly cover:
Make-safe first
If there is any immediate risk, the priority is isolating the affected circuit before any further testing or work.
Testing and isolation
We test to isolate the likely cause — distinguishing overload from a fault condition and identifying any contributing factors.
Clear explanation
You'll receive a plain-English explanation of what was found and what the recommended next steps are.
Options before work proceeds
If repairs or upgrades are needed, you'll be given clear options and a quote before any additional work begins.
Urgent warning signs - call now
If you notice any of these, treat it as urgent
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Burning smell, smoke, heat marks, or buzzing from the switchboard
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Visible arcing, sparking, or scorch marks
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A breaker or RCD that won't stay on after one reset
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Hot outlets, hot plugs, or discoloured fittings
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Repeated tripping that starts when heating turns on
Book a fault finding
Request an assessment
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As above, the safest way to confirm the cause of your breakers that keep tripping is to get a professional fault finding job booked in. This is a process that should only be done by an experienced, licensed electrician, as it is somewhat-risky procedure that must be done in a way that ensure the safety of both the electrician and your system as a whole. At SA Metro Electrical, our teams of experienced electricians Adelaide wide use highly-calibrated devices that are purpose-designed to detect faults and diagnose them within your electrical circuits and systems, making us the perfect option to diagnose your faulty breakers. We're proud of our exceptional customer service, and provide free quotes on electrical jobs for homes, offices and businesses - so don't delay, and get in touch for your free quote today.
Stop using the affected circuit immediately and call an emergency electrician.
Warning signs present
Monitor the situation, and consider booking a fault finding to uncover the source.
Not urgent, but recurring
Proudly serving Adelaide metro and surrounding suburbs
We service all Adelaide metro areas north, south, east and west, including the Adelaide CBD, Norwood, West Lakes, North Adelaide, Henley Beach, Unley, Prospect, Mawson Lakes, Burnside and Glenelg.
Not sure if you are in range? Call and we will confirm.
Frequently asked questions
Q: Why does my breaker trip more often in winter?
A: Heating can increase demand and expose overload or faults. If it repeats, book fault finding.
Q: Could one appliance be causing the trips?
A: If it trips again after one reset, don't keep resetting it. If there's heat, burning smell, or arcing, call immediately.
Q: My alarm keeps chirping — what does that mean?
A: Sometimes. A failing heater or appliance can trip protection devices. Professional fault finding is the safest way to confirm.
Q: Do I need a switchboard upgrade?
A: Not always — diagnosis comes first. If capacity or protection is limited, an upgrade may be recommended.