Electrical issues at home can be perplexing, from flickering lights to power sags or a high electricity bill. Here are the 12 most common electrical issues in homes.

This will help you comprehend the cause of the problem and how to resolve it, potentially saving you time, stress, and money.

Let’s look at these 12 most common house electrical problems

1. Electrical Power Surges

Electrical power surges in your home can be caused by various unforeseeable factors. Weather occurrences such as lightning can initiate a surge, as can the turning on and off of large appliances, which leads to an abrupt increase in power demand.

Grounding problems in your home’s wiring may also result in power surges.

By utilising surge protection devices, you can safeguard against these abrupt increases in electricity. Having knowledge of the causes can assist you in implementing preventive measures.

2. Dodgy Light Switches

Faulty light switches in your home typically fall into two categories: dimmer switches that fail to regulate lighting accurately and toggle switches that don’t maintain position.

The root causes usually include:

  • Errors during switch installation
  • Incorrect switch wiring
  • Obsolete switch models

Installation errors may cause switch button malfunctions, affecting your ability to operate lights. Incorrect wiring could make switches ineffective. Obsolete models may not be compatible with current electrical systems and may even be safety hazards.

These issues can pose potential fire risks, so maintaining properly functioning switches is crucial.

Next, we’ll discuss another prevalent issue – warm switches.

3. Warm Switches

A warm or hot light switch may indicate a serious electrical issue. The heat could be caused by factors such as the switch materials, insulation problems, old wiring, or inadequate temperature control.

Switches made from materials that don’t dissipate heat well may become warm. Insufficient or damaged insulation can also contribute to this issue by allowing heat to escape.

Older wiring might not adhere to current safety standards for electricity use. Poor temperature control in your home could also cause switches to heat up.

Don’t neglect warm switches; get them inspected.

4. Dips and Sags in Power

Experiencing power dips and sags can indicate serious electrical issues. These fluctuations may arise from faulty wiring or a malfunctioning transformer, disrupting your home’s electrical system.

To avoid this, there are several steps you can take:

  • Consider energy efficient upgrades to minimise power dips and reduce energy bills.
  • Use voltage stabilisation devices to regulate the power supply.
  • Regularly maintain your home’s electrical system for early problem detection.

Prompt action can prevent further damage and maintain a safe, efficient home electrical system.

5. Tripped Fuse

Overloading your home’s electrical circuit can occur if you use multiple high-wattage devices simultaneously, causing the combined power demand to exceed the circuit’s capacity. This is a serious problem, with risks associated with neglecting electrical maintenance such as electrical fires.

Appliances can suffer as well, with frequent fuse trips or blown fuses indicating an overloaded circuit. Avoid overloading by not connecting too many appliances to one socket and knowing your devices’ power requirements.

Invest in a circuit breaker that trips before overload. Prioritise safety and prevention when dealing with electricity.

6. Circuit Breaker Keeps Tripping

A common household issue is the frequent tripping of circuit breakers, typically due to overloaded circuits, short circuits, or earth faults. Regular breaker maintenance can help alleviate this problem.

Here are some steps to follow:

  • Firstly, identify and resolve the cause of overload.
  • Secondly, arrange regular inspections to identify potential problems early.
  • Lastly, if the issue continues, consider replacing the circuit breaker.

Always prioritise safety when dealing with electrical systems.

Next, we’ll discuss the occurrence of electric shocks.


7. Electric Shocks

Electrical shocks at home can be a serious concern, often resulting from earthing issues or faulty appliances. For instance, if a toaster gives you a shock consistently, it likely indicates a broader electrical problem.

Highlighting shock prevention is essential, such as using insulated tools or wearing rubber-soled shoes. However, if a shock does occur, immediate treatment is necessary. Unplug the device, seek medical assistance, and keep the victim calm.

Understanding these issues also underscores the significance of observing light variations, which we’ll discuss next in ‘dim or bright lights’.

8. Dim or Bright Lights

Unusually dim or excessively bright lights could indicate an electrical problem, such as voltage fluctuations. Addressing this quickly maintains lighting efficiency.

Energy-efficient solutions include: * Energy saving bulbs: They operate best at a specific voltage, reducing brightness issues. * LED alternatives: These withstand voltage fluctuations, ensuring consistent brightness. * Sustainable lighting: Natural light or solar-powered systems increase lighting efficiency and decrease reliance on electrical power.

This common issue requires attention.

Next, we’ll discuss lights turning off and on randomly.

9. Lights Turning Off and On

Your home lights flickering could indicate a need for system maintenance or an upgrade. Smart lighting systems can offer a consistent light flow, solving the flickering issue. They’re also energy efficient, which could lower your electricity bills.

Sustainable lighting options like LED lights are long-lasting, durable, and environmentally friendly. This approach not only tackles your lighting problem but also aids in environmental conservation.

More details about flickering lights will follow.

10. Flickering Lights

Flickering lights are a common electrical problem in homes. Common causes include:

  • LED compatibility issues: LED lights need specific switches, and a mismatch can result in flickering.
  • Wiring degradation: Old or damaged wires can also cause flickering due to their inability to carry a consistent current.
  • Voltage fluctuations: Voltage fluctuations, often related to large appliances drawing high currents, can lead to flickering.
  • Issues with light fittings: Lastly, issues like loose connections or damaged sockets in light fittings can cause flickering.

11. Bulbs Burn Out Too Quickly

Light bulbs burning out quickly often indicate a voltage issue, as bulb lifespan is largely dependent on the received voltage. Overheating due to excessive voltage can result in premature failure. Ensure your bulb’s wattage aligns with your socket’s capacity, as a higher wattage bulb in a lower wattage socket reduces bulb lifespan.

Installing your bulb correctly is also crucial. Over tightened bulbs can have a reduced lifespan, while loose bulbs might flicker and burn out rapidly.

Consider energy efficient alternatives like LED lights which consume less power and have a longer lifespan than traditional bulbs.

If despite these measures, your electricity bill remains high, let’s explore that next.

12. Expensive Electricity Bill

High electrical bills can be a sign of an electrical issue in your house. If you find your bills unusually high, it is wise to take action. Get an electrician to inspect the wiring in your home to make sure everything is working correctly.

The problem could be something as easy as a circuit breaker that needs replacing, or a more serious issue like faulty wiring. Having an electrician come out is the best way to spot any potential issues and discover the cause of the high bills.

Regularly check for signs of electrical damage like frayed wires and sparks from outlets or light fittings. Taking the right steps to keep your wiring in good condition can help you avoid expensive repairs and high bills in the future.


Electrical power surges, faulty light switches, and hot switches are typical electrical issues in British households. Power fluctuations, overloaded circuits, and lights that flicker are also problems that homeowners may face.

Moreover, high bills can indicate an underlying electrical problem. These issues can be hazardous and should not be disregarded. Safety should always be the main concern when dealing with electrical problems.

It is advisable to seek help from a certified electrician to resolve these issues. Taking preventative measures is often easier, safer, and more economical in the long term. Contact Canny Electrics today at 1300 522 446.