Likely causes
- Circuit overloaded — too many high-draw appliances on one circuit
- Faulty appliance leaking current to earth
- Damaged or aged RCD (safety switch)
- Loose or damaged cable in the wall or ceiling
- Old switchboard with worn breakers nearing end of life
What to do
- Note exactly which breaker or RCD trips, and what you were running when it tripped
- Try unplugging high-draw appliances one at a time to identify the culprit
- If the RCD won’t reset after one try, leave it off and call — don’t keep flicking
- If trips happen when nothing is running, it’s likely a wiring fault — book an inspection