Why Is My Circuit Breaker Tripping? 6 Likely Culprits & How to Fix Them
Your air con’s blasting, the microwave is reheating last night’s pizza, and just as you hit start on the dishwasher—boom. Darkness. Again.
If your circuit breaker keeps tripping, it’s not just a random annoyance—it’s your electrical system’s way of throwing a tantrum because something’s wrong. And ignoring it? Bad idea. You might be one overloaded socket away from a major electrical fault (or, worst case, a fire hazard). At Insight Electrical & Data, we’ve seen it all—so let’s break down the usual suspects behind why your circuit breaker keeps tripping and what you can do to fix it.
1. Your Circuit Is Overloaded (Yes, You’re Asking Too Much of It)
Your electrical circuit is like a buffet plate—pile too much onto it, and eventually, something’s going to spill.
If you’ve got your air conditioner, dryer, dishwasher, and microwave all running at once, chances are you’re demanding more power than the circuit can handle. When that happens, the breaker trips to prevent overheating and potential electrical fires.
How to Fix It:
✓ Unplug non-essential appliances and reset the breaker. If it holds, you found the problem.
✓ If you’re constantly tripping breakers, your home might need an electrical panel upgrade.
✓ Use high-energy appliances one at a time—your dishwasher and microwave don’t need to run together.
2. You’ve Got a Short Circuit (And That’s Not Good)
A short circuit happens when a hot wire touches a neutral wire, causing an instant power surge. It’s like an electrical shortcut that forces your breaker to say, “Nope, not today.”
How do you know if you’ve got a short circuit?
- The breaker trips immediately when reset.
- You notice burn marks or a burning smell near an outlet.
- Sparks or a zapping noise when you plug something in.
How to Fix It:
✓ Unplug everything from the circuit before resetting the breaker.
✓ If it trips again with nothing plugged in, you’ve got a bigger issue—it’s time to call an electrician.
✓ Check cords, plugs, and outlets for burn marks or melting—these are serious red flags.
3. Ground Faults—When Electricity Takes the Wrong Exit
Ever had your hot water heater or dishwasher trip the breaker out of nowhere? It could be a ground fault—where electricity leaks from a wire and takes an unintended path, often through metal or moisture.
Since these faults are more common in wet areas (kitchens, bathrooms, outdoor circuits), they’re a serious shock hazard if not addressed.
How to Fix It:
✓ Make sure your outlets in damp areas are protected by RCD/GFCI safety switches.
✓ Unplug the hot water heater or dishwasher—if the breaker holds, the appliance might be faulty
✓ If the breaker keeps tripping, stop using the outlet and call a professional.
4. Certain Appliances Are Just Energy Hogs
Some appliances are notorious for tripping breakers, either because they draw a ton of power or because they have internal faults.
Biggest Offenders:
- Air Conditioner – If it trips the breaker right after turning on, it might have a compressor issue or dirty filters.
- Microwave – If running your microwave kills the power, it’s likely on an overloaded circuit.
- Dryer Tripping the Breaker – This could be a clogged vent, a faulty heating element, or an overworked motor.
- Hot Water Heater – Older models can develop internal shorts, causing sudden breaker trips.
How to Fix It:
✓ Try plugging the appliance into a different circuit to see if the issue follows it.
✓ If it only trips with one appliance, that appliance needs servicing or replacement.
✓ Keep air filters, vents, and coils clean—dirty appliances work harder, drawing more power.
5. Your Circuit Breaker Might Be Faulty
Circuit breakers don’t last forever. If yours is tripping constantly for no apparent reason, it might be time for a replacement.
Warning signs:
✓ The breaker feels hot to the touch.
✓ It trips randomly, even with low power usage.
✓ A burning smell near the breaker panel (not good).
How to Fix It:
✓ If your home still has old ceramic fuses, it’s way past time for an upgrade
✓ Have an electrician inspect your switchboard for outdated or faulty breakers.
✓ If your house was built before the 2000s, your electrical panel might not be rated for modern energy use.
6. You’ve Got Wiring Issues (And You Shouldn’t Ignore It)
If your breaker trips often for no obvious reason, your home’s wiring could be the problem.
Common signs of wiring problems:
✓ Flickering lights or buzzing outlets.
✓ Breakers tripping even with minimal power use.
✓ Burn marks around outlets or a burning smell.
How to Fix It:
✓ Don’t ignore persistent electrical issues—bad wiring can lead to house fires.
✓ If your home’s wiring is over 30 years old, it’s worth having it checked.
✓ Call an electrician for a full home wiring inspection.
When to Call an Electrician (Before Things Get Worse)
If your safety switch trips randomly, even when nothing is on, get a professional to inspect your switchboard and circuits.
Need This Fixed? Insight Electrical & Data Can Help
Sure, resetting the breaker works for now, but repeated tripping is a warning sign. If you’re constantly dealing with outages, it’s time to get it checked before something more serious happens.
At Insight Electrical & Data, our electricians in Newcastle, NSW, handle breaker issues, electrical panel upgrades, appliance faults, and full wiring inspections across Newcastle and surrounding areas.
Give us a call, and we’ll find the real issue—before your next blackout.