Aus.ToolsHow-To Guides

How to reset a tripped circuit breaker safely at home

Learn how to reset a tripped circuit breaker safely in Australia. Step-by-step switchboard troubleshooting, overload checks, and AS/NZS 3000 safety guidance.

Quick answer

To reset a tripped circuit breaker safely, turn off connected appliances, locate the tripped switch on the switchboard, push the toggle completely off, then firmly flip it to the on position. Repeated tripping indicates an ongoing electrical overload or direct short circuit requiring inspection by a licensed electrician under AS/NZS 3000.

Skill level
Beginner
Time
15–30 minutes
Trade
Electrical
Updated
4 November 2026

Tools you will need

  • Ledlenser H7R Core - LED Rechargeable Headlamp
  • Blundstone 990 - Electrical Hazard Resistant Safety Boots
  • Fluke 1AC II VoltAlert - Non-Contact Voltage Detector
  • Dymo Rhino 4200 - Industrial Label Maker
  • Ansell HyFlex 11-800 - Multi-Purpose Handling Gloves

⚡ Safe guide to resetting a tripped circuit breaker at home

What does a tripped circuit breaker indicate in an Australian home?

A tripped circuit breaker usually means the switchboard has detected an overload, short circuit, or fault and has shut that circuit off to prevent fire, electric shock, or equipment damage. This guide explains how Australian homeowners can identify a tripped breaker, reset it safely, and recognise when the issue needs a licensed electrician.

Electrical work in Australia must be performed by a licensed electrician. This guide is for understanding the process and selecting the right tools and materials.

What skill level is required to safely reset a circuit breaker?

Beginner — Estimated time: 15–30 minutes

What tools are required to safely reset a tripped circuit breaker?

Insulated torch or headlamp for visibility at the switchboard
Non-contact voltage tester for basic indication only
Pen and notepad or phone to record which circuits/appliances were affected
Labels or marker if circuit identification is unclear
Optional: insulated gloves rated for low-voltage electrical work

What materials are needed for resetting a circuit breaker?

No replacement materials normally required for a simple reset
Optional switchboard circuit labels
Optional surge-protected power board for sensitive appliances
Optional appliance tags or notes to identify suspected faulty items

What are the key safety requirements for resetting a circuit breaker in Australia?

Electrical work in Australia must be performed by a licensed electrician. This guide is for understanding the process and selecting the right tools and materials.
Follow safe isolation principles and keep hands dry before touching the switchboard.
Stand on a dry surface and never reset breakers if the area is wet, flooded, or damaged.
Do not remove the switchboard cover or expose live parts.
If the device will not reset, trips immediately, smells burnt, feels hot, or there are signs of arcing, stop and call a licensed electrician.
In Australian installations, switchboards and protection devices are generally installed to AS/NZS 3000 requirements, with testing and verification requirements linked to AS/NZS 3017.
If an RCD/safety switch has tripped rather than a standard breaker, there may be an earth leakage fault, often from a faulty appliance, moisture ingress, or damaged wiring.
Use lock-out/tag-out principles where possible: keep others away from the switchboard while you are checking the fault and advise household members not to reconnect appliances until the cause is identified.

Step-by-Step Guide

Step 1: Confirm what has lost power

Check which lights, power points, or appliances are off.

This helps you work out whether:

one circuit has tripped
a whole section of the house is affected
the main switch or a safety switch has operated
the outage may be from the street supply rather than your home

Look outside to see if neighbours also have no power. If the whole street appears affected, contact your electricity distributor rather than repeatedly operating the switchboard.

Step 2: Go to the switchboard safely

Take a torch if lighting is poor and approach the switchboard carefully.

Before touching anything:

dry your hands thoroughly
make sure the floor is dry
keep children and pets clear
do not open internal covers or remove escutcheons

Most residential switchboards in Australia contain:

a main switch
circuit breakers
one or more RCDs/safety switches
sometimes combined RCBOs which provide both overcurrent and residual current protection

Step 3: Identify the tripped device

Look for a breaker or safety switch that is:

sitting midway between ON and OFF
fully in the OFF position while others are ON
labelled for the affected area such as lights, power, oven, air con, or hot water

A standard circuit breaker usually trips from:

overload
short circuit
internal device fault

An RCD/safety switch or RCBO may trip from:

faulty appliances
damaged extension leads
outdoor equipment exposed to rain
water in lights, fans, or external power outlets

💡 If the labels are poor, note exactly which parts of the house are off now so a licensed electrician can correctly identify and relabel circuits later.

Step 4: Turn off and unplug likely problem appliances

Before resetting, reduce the chance of the breaker tripping again.

Switch off and unplug appliances on the affected circuit, especially:

kettles
toasters
heaters
microwaves
washing machines
dishwashers
fridges in the affected area if practical
outdoor tools
chargers and power boards

After storms or rain, also check for:

wet outdoor sockets
pond pumps
garden lighting
garage appliances
extension leads left outside

This step is especially important if an RCD/safety switch has tripped.

Step 5: Reset the breaker correctly

To reset a tripped breaker, move the handle fully to OFF first, then firmly back to ON.

Do not force it.

If it is an RCD or RCBO, the same general reset method often applies:

switch fully OFF
then switch back ON

A proper reset usually requires a deliberate movement. If the device feels loose, crackles, or will not stay set, stop immediately.

💡 Many people try to push a tripped breaker straight to ON from the middle position. On many devices, it must first be switched fully OFF before it will latch back on.

Step 6: Check whether power has been restored

Go back to the affected area and confirm whether lights or power points are working again.

If power is restored:

leave appliances unplugged for the moment
monitor the circuit for a few minutes
continue with the next step to identify the cause

If the breaker trips again immediately with everything unplugged, there may be a wiring fault, moisture issue, or failed protective device. Stop and call a licensed electrician.

Step 7: Reconnect appliances one at a time

Plug appliances back in one by one and turn them on individually.

Wait 10–30 seconds between each item where practical.

If the breaker or RCD trips when a particular appliance is connected, that appliance may be faulty. Leave it unplugged and arrange repair, replacement, or testing.

Common examples include:

portable heaters with damaged elements
kettles with leakage faults
fridges with compressor issues
outdoor tools with damaged cords
old power boards or extension leads

Step 8: Know when the problem is not DIY

Call a licensed electrician immediately if:

the breaker will not reset
it trips instantly with all appliances disconnected
there is a burning smell
the switchboard is warm or damaged
there are buzzing sounds
water has entered the switchboard
a circuit has no clear labelling
the same circuit keeps tripping repeatedly
you have ceramic fuses, asbestos panel backing, or an outdated switchboard
storm damage is suspected

In homes with older boards, an electrician may recommend upgrades such as:

replacing old protection devices
installing additional RCD or RCBO protection
improving circuit separation
correcting cable sizing such as 1.5mm², 2.5mm², 4mm², 6mm², 10mm² TPS where required for the application and protection method under AS/NZS 3000

Common Mistakes to Avoid

1.Resetting the breaker repeatedly without unplugging appliances first.
2.Touching the switchboard with wet hands or while standing on a damp surface.
3.Assuming every trip is just an overload when it may be a fault or moisture issue.
4.Removing the switchboard cover to “have a look” inside.
5.Ignoring repeated tripping instead of arranging professional fault finding.
6.Confusing a power company outage with a household circuit fault.
7.Reconnecting all appliances at once, making the fault hard to identify.

Pro Tips

1.💡 If a breaker trips after using multiple high-load appliances together, spread them across different times rather than running them all at once.
2.💡 Label circuits clearly after the event so future outages are faster to diagnose.
3.💡 If storms are common in your area, check outdoor sockets and connected equipment first when an RCD trips.
4.💡 Keep a torch near the switchboard so you are not using a phone light with one hand while operating switches.
5.💡 If one appliance consistently causes tripping, stop using it immediately even if it seems to work sometimes.

Recommended Tools

Fluke or Klein non-contact voltage tester — quick basic indication near outlets and cords
HPM or Dymo circuit label kit — useful for clearer switchboard identification
LED headlamp or insulated torch — safer visibility at dark meter/switchboard locations
Arlec or Jackson surge-protected power board — helpful for sensitive electronics
Insulated gloves for low-voltage general handling — added safety when operating the switchboard

⚠️ Safety

Electrical work in Australia must be performed by a licensed electrician. This guide is for understanding the process and selecting the right tools and materials.
Do not work on exposed live parts.
Do not remove covers from the switchboard.
Isolate, keep clear, and use basic lock-out/tag-out awareness so others do not reconnect equipment during fault checking.
If in doubt, arrange a licensed electrician.

🔒 Licensing

NSW: Electrical installation and repair work must be carried out by a licensed electrician under NSW Fair Trading requirements.
VIC: Electrical work is regulated by Energy Safe Victoria (ESV) and prescribed work requires a licensed electrical worker.
QLD: Electrical work is regulated by the Electrical Safety Office (ESO) and generally must be performed by a licensed person.
WA: Electrical work is regulated by Building and Energy / EnergySafety and must be carried out by appropriately licensed electrical workers.

Frequently asked questions

Why does a circuit breaker keep tripping immediately after resetting?
A circuit breaker that trips instantly upon resetting indicates an active dead short circuit, a severely damaged appliance, or an earth leakage fault. Do not force the switch into the on position. Unplug all devices on that circuit to isolate the appliance before trying one more reset.
How do you safely reset a tripped circuit breaker in an Australian home?
To reset a tripped breaker, ensure your hands and footwear are completely dry. Open the switchboard door, locate the breaker toggle resting in the off or middle position, push it fully down to off, and then push it firmly up to on. If it holds, reconnect appliances one by one.
What is the difference between a circuit breaker and a safety switch (RCD)?
A circuit breaker protects electrical wiring from sustained overcurrent and dead short circuits to prevent house fires. An RCD or safety switch detects microscopic current leaking to earth and trips in under thirty milliseconds to protect humans from fatal electric shock, in compliance with AS/NZS 3000:2018.
When is it illegal for a homeowner to work on an Australian switchboard?
Under Australian electrical safety legislation, homeowners may only flip external toggle switches and press test buttons on switchboard facings. Removing the switchboard cover, handling internal busbars, replacing breakers, or altering any live wiring is illegal unlicensed electrical work punishable by substantial statutory fines.
What should you do if an electrical breaker feels hot or smells like burning?
Leave the circuit breaker switched off immediately, avoid touching internal components, and contact an emergency licensed electrical contractor. A hot breaker or burning smell signals a loose terminal connection, serious arcing, or severe heat degradation inside the switchboard enclosure, presenting an imminent structural fire hazard.

Written by Sparky, the Electrical specialist at Aus.Tools.