Why Does My Circuit Breaker Keep Tripping? 5 Common Causes & Safe Fixes

If your circuit breaker keeps tripping, you’re not alone. Many homeowners across Melbourne face this frustrating—and sometimes worrying—issue. At Nillumbik Electrical, we help families keep their homes safe by diagnosing and repairing electrical faults every day. In this guide, we’ll explain why your breaker trips, the top five causes, and how to know when it’s time to call a licensed electrician.


What Is a Circuit Breaker and Why Does It Trip?

Your circuit breaker is a built-in safety device designed to stop the flow of electricity when there’s an overload or fault. While an occasional trip is normal, frequent tripping signals a deeper problem that should never be ignored. Left unchecked, these issues can pose serious risks like electrical fires, damaged appliances, or even electric shock.


5 Common Reasons Your Circuit Breaker Keeps Tripping

  1. Overloaded Circuits
    Plugging too many appliances into the same circuit is the most common cause of breaker trips. Kettles, heaters, dryers, and microwaves all draw heavy loads. If they’re running on one circuit, it can exceed capacity and cause a trip.
  2. Short Circuits
    A short circuit happens when a live wire touches neutral or ground, creating a surge of current. This is a dangerous fault that needs immediate attention. Signs include a burnt smell, blackened outlet, or sparking.
  3. Ground Faults
    Similar to a short, a ground fault occurs when electricity escapes to ground. These are especially common in damp areas like bathrooms or kitchens, where water increases the risk of electrocution.
  4. Faulty Circuit Breakers
    Like any component, breakers can wear out over time. If your breaker feels hot, hums, or struggles to reset, it may be faulty and unsafe to use.
  5. Loose Wiring or Arcing
    Over time, wiring connections can loosen, leading to arcing (tiny sparks). This not only trips breakers but can also increase the chance of house fires.

How to Diagnose Safely

Before you panic, try these simple steps:

  • Turn off and unplug appliances on the tripped circuit.
  • Reset the breaker by switching it fully off, then back on.
  • Plug in one appliance at a time to see if a particular item causes the trip.

⚠️ Safety Tip: If your breaker trips repeatedly, don’t keep resetting it—call a professional electrician.


When to Call Nillumbik Electrical

Persistent breaker trips should never be ignored. Call us if you notice:

  • Burning smells, buzzing, or warm outlets.
  • Frequent trips in multiple rooms.
  • Old or outdated wiring in your home.
  • Sparks or scorch marks near outlets.

Our licensed electricians service Mill Park, Diamond Creek, Eltham, Greensborough, and surrounding suburbs. We provide thorough electrical inspections and safe, lasting solutions to protect your home and family.


Prevention Tips

  • Spread heavy appliances across different circuits.
  • Avoid using multiple high-wattage devices at once.
  • Don’t overload power boards or extension leads.
  • Book a regular home electrical safety inspection with Nillumbik Electrical.

Conclusion

If your circuit breaker keeps tripping, it’s your home’s way of warning you that something isn’t right. While some cases are simple overloads, others require urgent professional repair. Nillumbik Electrical is here to keep your family safe with expert diagnosis and reliable solutions.

👉 Contact us today to book a safety inspection or electrical repair in Melbourne’s northern suburbs.

Old outdated switchboard with ceramic fuses before upgrade by Nillumbik Electrical in Melbourne.
⚠️ Before: An outdated switchboard with ceramic fuses that no longer meet today’s safety standards.
Modern Clipsal switchboard upgrade with safety switches and RCD protection installed by Nillumbik Electrical in Melbourne.
✅ After: A brand new switchboard upgrade with modern safety switches and RCD protection for maximum home electrical safety.

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