Power Keeps Tripping? How to Tell If It’s an Appliance, Circuit or Switchboard Problem

If your power keeps tripping, it can be frustrating, inconvenient and sometimes a little worrying. One moment everything is working as normal, and the next, part of the house has lost power or the safety switch has tripped again.

In many cases, your switchboard is doing exactly what it is designed to do. A safety switch or circuit breaker will cut power when it detects a problem, helping to protect your home, appliances and the people inside.

The tricky part is working out what is actually causing the issue.

A tripping circuit could be linked to a faulty appliance, an overloaded circuit, moisture, damaged wiring, or an issue within the switchboard itself. While some simple checks may help you narrow down the cause, repeated tripping should never be ignored.

In this guide, we explain the common reasons power keeps tripping and how to tell whether the problem may be coming from an appliance, the circuit, or the switchboard.

What Does It Mean When Your Power Trips?

When your power trips, it usually means a safety device in your switchboard has detected a problem and automatically shut off power to part of the property.

Depending on your switchboard, this may be caused by a safety switch, circuit breaker, RCBO or, in older homes, a fuse.

While these devices are often grouped together in everyday conversation, they do not all do the same job. Some are designed to protect people from electric shock, while others are designed to protect circuits from overload or faults.

If the power trips once and does not happen again, it may have been a one-off issue. However, if it keeps happening, there is usually an underlying cause that needs to be identified.

Could One Appliance Be Causing the Problem?

One of the most common reasons power keeps tripping is a faulty appliance.

This can happen when an appliance has an internal fault, moisture inside it, damaged wiring, or an element that is starting to fail. In many homes, the issue only becomes obvious when the appliance reaches a certain part of its cycle or begins drawing more power.

Common appliances that can cause tripping include:

- Dishwashers
- Washing machines
- Dryers
- Ovens
- Cooktops
- Kettles
- Toasters
- Fridges
- Heaters
- Hot water systems

For example, a dishwasher may work during the wash cycle but trip the power during the drying cycle. A dryer may only trip after heating up. An oven may trip once it reaches temperature or when a particular element is turned on.

If the power only trips when one appliance is being used, that appliance may be the source of the problem. However, it is still important to have the issue checked properly, especially if the appliance is hardwired or connected to a dedicated circuit.

Could the Circuit Be Overloaded?

Another common cause of tripping is an overloaded circuit.

This happens when too many appliances or devices are drawing power from the same circuit at the same time. The circuit breaker may trip to prevent the wiring from overheating.

This is more likely to happen when several high-power appliances are being used together, such as heaters, dryers, kettles, ovens, microwaves or portable air conditioners.

Signs the circuit may be overloaded include:

- The power trips when multiple appliances are running at once
- The issue happens more often in certain rooms
- Power boards or double adaptors are being used heavily
- The circuit trips when a heater, dryer or kettle is switched on
- The same area of the house loses power each time

If this keeps happening, it may mean the circuit is not suitable for the way the space is being used. In some cases, an electrician may recommend installing an additional circuit or reviewing the switchboard and existing wiring.

Could Moisture Be Involved?

Moisture can also cause safety switches to trip.

This may happen in areas such as kitchens, bathrooms, laundries, outdoor spaces, garages or under-house areas. Outdoor power points, garden lighting, damaged fittings, roof leaks and damp appliances can all contribute to electrical faults.

Moisture-related electrical issues may be more noticeable after rain, heavy condensation, cleaning, or when appliances are used in damp areas.

Possible signs of a moisture-related issue include:

- Power tripping after rain
- Outdoor lights or power points not working properly
- Tripping linked to bathroom, laundry or kitchen appliances
- Water marks near fittings or switches
- Damp smells, condensation or visible moisture near electrical points

Water and electricity are a dangerous combination, so these issues should always be treated carefully. If you suspect moisture is involved, avoid touching affected switches, fittings or power points and arrange for a licensed electrician to inspect the area.

Could It Be a Switchboard or Wiring Problem?

Sometimes the issue is not caused by one appliance at all. The problem may be with the circuit, wiring, safety switch, circuit breaker or switchboard.

This is more likely in older homes, properties with older switchboards, homes with added appliances or renovations, or properties where circuits have not been upgraded to suit modern electrical demand.

A switchboard or wiring issue may be more likely if:

- The power keeps tripping even when appliances are unplugged
- Several areas of the home are affected
- The same circuit trips repeatedly
- There are burning smells, buzzing sounds or warm switches
- Lights flicker or dim unexpectedly
- The switchboard looks old, damaged or overcrowded
- The property still has ceramic fuses or limited safety switch protection

Electrical faults can worsen over time if they are not addressed. If your switchboard is frequently tripping, it is worth having the circuits tested and the switchboard inspected.

What You Can Safely Check Before Calling an Electrician

There are a few simple checks you may be able to do before booking an electrician. These can help identify patterns and make it easier to explain the issue.

You can try:

- Noting which area of the home loses power
- Checking whether the issue happens when a specific appliance is used
- Unplugging appliances from the affected area
- Resetting the safety switch or circuit breaker once
- Plugging appliances back in one at a time to see if the issue returns
- Checking whether the issue happens after rain or when using outdoor power points

However, you should not keep resetting a tripping switch over and over. If it trips again, there is likely a fault or overload that needs to be investigated.

You should also avoid opening the switchboard, removing covers, touching damaged fittings, or attempting electrical repairs yourself. Electrical work should only be carried out by a licensed electrician.

When Should You Call a Licensed Electrician?

You should call a licensed electrician if your power keeps tripping, the switch will not reset, or you cannot clearly identify what is causing the issue.

It is also important to arrange an inspection if the tripping is linked to a hardwired appliance, outdoor power, moisture, burning smells, buzzing sounds, warm switches or an older switchboard.

A licensed electrician can safely test the circuit, inspect the switchboard and determine whether the issue is caused by an appliance, overload, wiring fault or safety switch problem.

Electrical Safety Warning

Don’t Ignore Repeated Power Tripping

A tripping safety switch or circuit breaker can be annoying, but it is also a warning sign that something is not right.

Sometimes the cause is simple, such as a faulty appliance. Other times, it may point to a larger issue with the circuit, wiring or switchboard.

If your power keeps tripping, the safest approach is to have it checked by a licensed electrician. This can help prevent further damage, reduce safety risks and give you a clearer answer on what needs to be repaired or upgraded.

Need Help Finding the Cause?

If you cannot identify the cause or the power continues to trip, call Capital Home Electrical for advice and to arrange an inspection with a licensed electrician.

Call Us Now Request a Quote