It happens to most people: you switch on the washing machine or some other appliance, and the lights in the room dip for a moment. Sometimes, people just dismiss it as one of the quirks of homeownership, but most of the time, it is a result of something that isn’t quite right. So, knowing the difference between a quirk and a genuine concern is worth taking note of.
If the flickering is frequent, pronounced, or getting worse over time, it is the kind of thing worth discussing with a professional electrician in Worthing before it turns into a major issue.
Why Does It Happen at All?
Every electrical circuit in your home has a capacity, i.e. the maximum amount of electricity that it can carry at any single time. When a large appliance starts up, it briefly draws a surge of current, which is more than it normally draws when working. Motors in the washing machine and fridge are an example of this.
When the surge passes through the circuit, it creates a temporary dip in the voltage available to other things on the same circuit, including the lights. The result is a brief, characteristic dimming that most people have noticed at some point.
Common Causes Worth Knowing About
An overloaded circuit
If multiple appliances and lighting fixtures share the same circuit, the combined demand can push it close to its limits. Thus, when one more appliance starts up and draws its startup surge, there’s simply not much headroom left. This is particularly common in older homes where the original wiring wasn’t designed to cope with modern appliances in mind.
Loose or deteriorating connections
Electrical connections that have loosened over time or wiring that has deteriorated with age often introduce resistance in circuits. This becomes more apparent under load, which is precisely when a large appliance starts up. Moreover, loose connections are also a fire risk, and so they should be handled only by a professional electrician in Worthing.
An ageing consumer unit
The fuse box is the hub of your home’s electrical system. An older unit that isn’t rated for modern electrical demands or one that contains outdated components can often struggle to manage the load fluctuations of modern appliances. Frequent dimming of lights is often the first sign that the consumer unit is no longer able to keep up.
When Should You Be Concerned?
An occasional dip when something large starts up is usually considered normal. However, the situations that warrant attention are those where the dimming is significant, happens frequently, and affects multiple rooms.
If the lights don’t just dim but continue flickering repeatedly, rather than a single brief drop, it may be a sign of a loose connection or a fault somewhere in the circuit. Moreover, any dimming accompanied by a burning smell or a warm switch/ socket should be treated as urgent.
These are times when you should contact a qualified electrician in Worthing promptly rather than wait to see if the situation improves on its own over time.
Key Takeaway
Lights that dim or flicker when appliances start up are worth paying attention to, not because they always indicate a serious problem, but sometimes they do, and there’s really no way to tell the difference.
From fault finding and consumer unit upgrades to full rewires, we do it all. We’re NAPIT registered and City & Guilds qualified. Our team is available for emergency call-outs and all kinds of domestic and commercial electrical work. So, the next time you notice continuous flickering lights, feel free to get in touch with Kingfisher Electrics.
Some Frequently Asked Questions
Why does only one light flicker, but the others are fine?
If only one light flickers, the issue is usually localised to that fitting. This can be a bulb, a faulty switch, or just a poor connection that causes the intermittent flickering while other lights remain unaffected.
Why do my lights flicker even when no appliances are on?
Lights that flicker without any major appliances running often signal loose wiring, voltage fluctuations, a faulty light fitting, or ageing electrical components. Hire a qualified electrician in Worthing to have the system checked.