Why does my safety switch keep tripping?
A safety switch trips when it detects current leaking to earth. A faulty appliance is a common cause, but damaged wiring, moisture and failing devices can do the same thing.
Safety classification
Safe inspection only
This guide covers safe first actions only. It is not a licence to perform regulated work or enter a dangerous area.
What to do
- 1
Check for danger first
If there is smoke, a burning smell, sparking or water near electrics, do not touch the switchboard. Keep clear and call an electrician, or 000 if there is fire.
- 2
Unplug appliances on the affected circuit
Switch off and unplug everything you can on the circuit that lost power, including items in garages and outdoor areas.
- 3
Reset the safety switch once
With dry hands, switch the safety switch back on. If it trips immediately with everything unplugged, leave it off and call a licensed electrician.
- 4
Plug appliances back in one at a time
Wait a moment after each. When the switch trips, the last appliance plugged in is likely faulty. Stop using it and have it checked or replaced.
- 5
Note patterns
Record whether trips happen in rain, at a certain time or when a particular appliance runs. It helps the electrician find intermittent faults.
When to stop
- It trips again with everything unplugged
- There is a burning smell, heat or scorch marks
- Water has entered a fitting or the switchboard
- It trips repeatedly in wet weather
Electrical
Prepare the problem, safety status and location once. The matching category and service will be pre-filled.
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