Practical answers to real electrical questions — from the team at Electriman.
If your EICR certificate has come back with a Code 1, it means the electrician who carried out the inspection found something genuinely dangerous in your home's…
Cloth-covered electrical cable, sometimes called vulcanised rubber cable or VRI wiring, was the standard installation method in UK homes up until roughly the la…
A burning plastic smell coming from your consumer unit or fuse board is never something to ignore, and the fact that it happens or worsens in cold weather gives…
Finding your earth conductor warm or hot at the consumer unit is not normal and should be taken seriously. In a properly working electrical installation, the ma…
If your bathroom socket smells burnt when you plug in a hairdryer, the first thing to understand is that most bathroom sockets in UK homes are shaver sockets, n…
What you are seeing is the result of very old cable insulation that has simply reached the end of its usable life. Most cables installed in UK homes before the…
Finding a neutral wire glowing red inside your fuse box, even when nothing is switched on, is genuinely alarming and you are right to be concerned. It means tha…
Your consumer unit, sometimes called a fuse box, should feel barely warm to the touch during everyday use. A slight warmth is completely normal because electric…
Finding voltage on a neutral wire when you have turned off your main switch can be alarming, but in most cases there is a straightforward explanation rooted in…
If you can smell burning plastic coming from your electrical panel, also called a consumer unit or fuse box, take it seriously. This smell almost always means s…
Finding that your EV charger cable is getting warm or hot to the touch is a warning sign you should not ignore. Heat in a cable means it is working harder than…
Finding your earth wire running hot at the consumer unit is understandably alarming, and you are right to be concerned. Under normal conditions, an earth conduc…
Your consumer unit, sometimes called a fuse box, should be barely warm to the touch during everyday use. A slight warmth is normal because electricity passing t…
Finding a Code 1 on your EICR can be alarming, but understanding what it means helps you act quickly and safely. What a Code 1 actually means A C1 code stands…
Finding voltage on a neutral wire when you think everything is switched off can be alarming, and it is right to take it seriously. Here is what is actually happ…
Finding a glowing red neutral wire in your fuse box is genuinely alarming, and your concern is completely justified. That red glow is heat, and heat in electric…
A burning plastic smell coming from your consumer unit or fuse box is never normal and should always be taken seriously. In cold weather this can become more no…
When your main breaker, sometimes called the main switch or incomer, trips the moment you turn it on, it is telling you there is a fault it cannot get past. The…
It is a very common question and an understandable one. If the cable run is only a metre or two, you might think the resistance is so low that a smaller cable w…
Thermal runaway sounds alarming, and it should be taken seriously, but understanding what it is and what protects you from it will help you make sense of your h…
When you plug a microwave into a kitchen socket, you might see or hear a small snap or spark. For many homeowners this is alarming, but it is not always a sign…
If you have noticed that the wall feels warm near the cooker cable route, or you can smell a faint burning or plastic smell when the oven or hob is on, this is…
Finding a neutral wire that is glowing red or too hot to touch at your consumer unit is a genuine electrical emergency and you should treat it as one. Here is w…
Receiving a letter or call from your insurance company telling you your home is at extreme electrical fire risk can feel alarming. The good news is that once yo…
It is completely understandable to wonder whether a shorter cable run means you can use a thinner cable. Unfortunately, the answer is no, and the length of the…
Finding a hot socket when you unplug your phone charger in the morning can be alarming, and rightly so. A socket that is warm to the touch or genuinely hot is n…
A loose neutral is one of those faults that can be completely invisible right up until it causes serious damage. Here is what you need to understand as a homeow…
If your home lithium battery is getting extremely hot during charging, this is not something to dismiss as normal. All lithium batteries generate some warmth du…
Finding your earth conductor warm or even hot at the consumer unit is genuinely unusual and worth taking seriously. In a healthy installation, the earth wire ca…
An EV charger losing power during a charging session can be frustrating, and it is understandably worrying because it suggests something is not working as it sh…
Finding a hot socket is understandably alarming, and you are right to take it seriously. While phone chargers draw very little current compared to something lik…
Your RCD is designed to protect you from electric shock and fire by constantly comparing the current flowing out on the live wire with the current returning on…
Finding your consumer unit tucked away under the kitchen sink might seem like a tidy solution, but it is one of the most hazardous places it could be installed.…
The main earth terminal in your consumer unit is one of the most important safety connections in your home. It links your entire electrical installation to eart…
It can be really frustrating when your RCD keeps tripping but your electrician visits and finds nothing wrong. The good news is this is a recognised and very co…
If you have noticed warmth on the wall surface near your cooker circuit, or had an electrician mention the cable feels hot when your cooker is running, this is…
A popping sound coming from your old fuse box is your home's way of telling you something is wrong electrically. It is not a noise to simply live with or write…
Just because electricity is flowing through old cloth-covered wiring does not mean it is safe. Many homeowners inherit this type of wiring in older properties a…
Seeing a spark when you plug your microwave in can be alarming, but it helps to understand what is actually happening before deciding how worried to be. A very…
Finding a hot socket in your kitchen is understandably alarming, and you are right to take it seriously. A socket that feels uncomfortably or dangerously hot is…
What is actually happening when your main switch trips instantly? The main switch in your consumer unit, sometimes called the incomer or isolator, is designed…
Finding a Code 1 on your EICR report can feel alarming, and it should be taken seriously, but understanding what it means will help you act quickly and calmly.…
PME stands for Protective Multiple Earthing. It is the most common type of earthing system used in UK homes today, and understanding it helps explain why a cert…
When your boiler or central heating fires up, it draws a surge of electrical current through your consumer unit. If anything inside the unit is loose, corroded,…
Finding that a neutral wire in your consumer unit is running at 70°C is a warning you should take seriously. That temperature is the maximum that standard PVC-i…
Finding cloth-covered wiring in your home can be alarming, but understanding what it means will help you make the right decisions. Here is what you need to know…
Finding continuity between the neutral and earth terminals on a circuit can feel alarming, but in most UK homes it is completely expected and is built into how…
If your home has wiring covered in fabric or cloth braiding, often a woven cotton or jute finish in black, red, or green, it is almost certainly original instal…
If your RCD keeps tripping randomly and you cannot link it to a specific appliance, the neutral wiring in your circuit could be to blame. Here is what is happen…
Finding your earth conductor warm to the touch at the consumer unit is not normal and should be taken seriously. In a healthy electrical installation, the earth…
When your main breaker or main switch trips the moment you try to switch it on, even with every circuit breaker turned off and nothing plugged into any socket,…
It is completely understandable to feel frustrated when your RCD keeps tripping, especially if it happens repeatedly or at inconvenient times. However, bypassin…
Your consumer unit, sometimes called a fuse box, should feel slightly warm at most during normal use. If it feels genuinely hot to the touch, that is a warning…
A split neutral fault is one of the more serious electrical faults that can affect a home, and it explains why multiple appliances can all stop working or get d…
If you have touched an old cable and the plastic or rubbery coating has crumbled away like dry dust or flakes, your wiring has reached the end of its safe worki…
What you are seeing around those screw terminals is called arcing or thermal damage, and it tells you that electricity has been finding it difficult to flow cle…
It is a very common misconception that if electricity is getting to your sockets, the wiring behind the scenes must be fine. With old cloth-covered cable, that…
If your bathroom socket smells burnt when you plug in a hairdryer, this is a serious warning sign and you should stop using it straight away. Here is what is li…
Finding continuity between the neutral and earth terminals on a circuit when nothing is connected can feel alarming, but in many UK homes it is completely norma…
When your EICR report flags a failed continuity test on an earth conductor, it is telling you that the electrician tested the protective earthing wire in one or…
PME stands for Protective Multiple Earthing. It is the earthing arrangement used in the majority of homes across the UK. Your electricity supplier's network use…
Finding that an electrical cable is getting hot inside a wall cavity when the heating is on is something you should take seriously, even if everything seems to…
Receiving a letter from your building insurer telling you that your home is at extreme risk of electrical fire can be alarming, but it is important to understan…
Finding voltage on your earth wire when the main switch is off is understandably alarming, and it should be taken seriously. Here is what is happening and what…
If you have noticed that the wall feels warm near your tumble dryer socket, or that the cable itself feels hot to the touch where it enters the wall, this is a…
If you hear a crackling or popping sound, see a flash of light, or smell burning when you plug in something like a kettle, washing machine, or electric heater,…
Finding a green, flaky or crumbling cable inside your consumer unit is alarming, and rightly so. That green colour is verdigris, which is the result of copper c…
What does a ground fault warning actually mean? Your EV charger has a built-in safety device that constantly monitors the electrical path between the live cond…
PME stands for Protective Multiple Earthing. It is the most common type of earthing system used in UK homes, supplied by your electricity network operator such…
Finding 230 volts on a neutral wire is genuinely alarming, and rightly so. In a healthy electrical system, the neutral wire should sit at or very close to zero…
When you plug in a kettle and see or hear a flash or crackling sound inside the socket, it means electrical current is jumping across a gap rather than flowing…
A burning plastic smell coming from your consumer unit or fuse board is one of the most serious warning signs your home can give you. It means something inside…
If you can see or smell smoke coming from the main terminals of your old rewireable fuse box, this is a genuine emergency and should not be treated as a minor i…
If you have noticed that the fabric covering on your old electrical cables is crumbling away, or that the rubbery material underneath is cracking and falling ap…
It is understandable to be alarmed if your consumer unit feels warm or hot to the touch, especially when you are not running many appliances. The good news is t…
It is completely understandable to feel frustrated when your RCD keeps tripping and cutting power to part of your home, especially if it happens regularly or at…
Thermal runaway sounds alarming, and it can be serious, but understanding what it means helps you know what to watch for and when to act. What it actually is E…
PME stands for Protective Multiple Earthing. It is the type of earthing system used in most UK homes, supplied by your electricity network operator. Understandi…
Finding that an electrical cable is getting hot inside a wall cavity when your central heating is running is genuinely concerning, and you are right to look int…
Finding a neutral conductor running at 80°C at your consumer unit is a genuine warning sign that something is wrong, and it deserves prompt attention. Here is w…
Finding that an electrical cable is getting hot inside your wall cavity when the central heating fires up is genuinely concerning, and you are right to take it…
A loose neutral wire is one of the most underestimated fire hazards in a UK home, and it hides in a place most homeowners never look: the consumer unit, which i…
A burning plastic smell coming from your consumer unit is one of the most serious warning signs your home's electrics can give you. The fact that it happens mai…
A split neutral fault is one of the most dangerous electrical faults a home can develop, yet most homeowners have never heard of it. Here is what you need to kn…
A burning plastic smell coming from your consumer unit or fuse board is one of the most serious warning signs your home's electrics can give you. It should neve…
Finding voltage on your earth wire even after turning off your main switch is a serious warning sign that should not be ignored. Here is what it means in plain…
Insurance companies use a range of data to assess fire risk in a property. If yours has come back as extreme risk, it almost certainly relates to the age or con…
If you have noticed that the plastic or rubber coating around your electrical cables is cracking, flaking, or turning powdery when touched, this is not somethin…
Finding voltage on an earth wire when you believe the power is off is understandably alarming, and it is right to take it seriously. Here is what is likely happ…
A split neutral fault might sound technical, but the effects in your home can be very noticeable and potentially dangerous. Here is what you need to know in pla…
A burning plastic smell coming from your consumer unit or fuse box is not something to dismiss as minor. It is one of the clearest warning signs that something…
Finding that the neutral conductor at your consumer unit (fuse box) is running at 80°C is genuinely concerning and needs prompt attention. To put it simply, 80°…
Finding out your insurer considers your home at extreme risk of electrical fire can be alarming, but it is actually useful information. Insurers use a range of…
A burning smell coming from your consumer unit — your fuse box — is never something to dismiss, and the fact that it happens specifically at night gives us a us…
If you have tested between the neutral and earth pins of a socket and found continuity, your first reaction might be that something is wrong. In most cases, it…
Your main earth terminal is one of the most important safety connections in your entire electrical installation. It is the central point where all the earthing…
If your LED bulbs flicker when connected to a particular light switch but work fine elsewhere in the home, the switch itself is almost certainly the culprit rat…
A solar inverter shutting down repeatedly is frustrating, but it is usually trying to protect itself or your home. Understanding the most common reasons can hel…
A loose socket is one of those things that is easy to ignore but should not be left alone. There are a few different reasons it might be happening, and most of…
If you have just received an Electrical Installation Condition Report and it contains a Code 1 or Code 2, it is understandable to feel worried. Here is what eac…
Do I Need Permission to Install an EV Charger at Home? For most UK homeowners, installing an EV charger is straightforward from a permissions standpoint — but…
What Size Consumer Unit Do I Need? Your consumer unit (also called a fuse board or distribution board) is the heart of your home's electrical system. Choosing…
Can I Run a 32A Cooker Circuit in 2.5mm Cable? The short answer is no — and it is genuinely dangerous to try. Every cable has a maximum current it can safely…
Is My Consumer Unit Too Hot? Your consumer unit (also called a fuse box) should feel slightly warm at most — never hot. A small amount of warmth is normal beca…
What Happens If You Ignore a Failed EICR? Receiving an Unsatisfactory EICR can feel overwhelming, but ignoring it is never the right option. Here is what the f…
Why Your RCD Keeps Tripping But the Electrician Can't Find the Fault This is one of the most frustrating electrical problems a homeowner faces. Your RCD (Resid…
What Happens If You Ignore a Failed EICR Code? An Electrical Installation Condition Report (EICR) grades faults using codes — C1, C2, C3, and FI. If your repor…
How to Tell If Your RCD Is Faulty or Leaking Your RCD (Residual Current Device) is one of the most important safety devices in your home. It's designed to cut…
What Does 'No Earth' on a Socket Mean? Every modern UK socket outlet should have three connections: Live (brown/red), Neutral (blue/black), and Earth (green-an…
What Does Crumbling Wire Insulation Mean? If you've noticed the plastic or rubber coating on your wires is flaking, cracking, or turning to dust, your wiring h…
What Does a Ground Fault Error Mean on My EV Charger? A ground fault (sometimes called an earth fault) means your EV charger has detected electricity flowing s…
Why Is My Consumer Unit Making Crackling Noises? Hearing crackling, clicking, or popping sounds coming from your fuse box (consumer unit) — especially at night…
Why Is My Bathroom Socket Sparking Inside the Wall? If you can see or hear sparking coming from behind a bathroom socket — or from within the tiled wall itself…
What Does a Reversed Live and Neutral Mean? In UK wiring, the live (brown) wire carries current to your appliance, and the neutral (blue) wire completes the ci…
What Is Old Unsheathed Cable and Why Is It a Problem? If your home was built or last rewired before the 1970s, it may contain electrical cables that are now co…
Why Your Socket Smells of Burning Plastic When the Microwave Runs That burning plastic smell is your home's wiring telling you something is seriously wrong. It…
What Does a High-Risk Electrical Fire Assessment Mean for You? Receiving a high-risk rating on an electrical fire risk assessment can be alarming, but understa…
Why Is My Cable Getting Hot Inside the Wall? Finding that a cable or the area around a socket or switch feels warm — or smelling something burning from inside…
What Does Arcing Inside a Socket Mean? If you have seen a flash of light, heard a crackling or buzzing sound, or noticed a burning smell coming from behind you…
Why Has My Consumer Unit Tripped Out Completely? When your entire consumer unit goes dead — not just one circuit — it usually means the main switch (incomer) h…
What Does a Glowing Red Neutral Wire Mean? If you can see a neutral wire that looks red, orange, or is visibly glowing, this is a serious electrical emergency.…
What is a PME Failure and What Should I Do? PME stands for Protective Multiple Earthing, which is the most common earthing system used in UK homes. Under norma…
Connecting a Battery to Your Solar System — What Homeowners Need to Know Adding a battery to your solar setup lets you store surplus energy generated during th…
How to Test Your RCD at Home An RCD (Residual Current Device) is a life-saving safety switch fitted in your consumer unit (fuse box) or plugged into a socket.…
How Much Does a New Consumer Unit Cost in the UK? Replacing your consumer unit (also called a fuse box) is one of the most important electrical upgrades you ca…
What Is a Floating Neutral in Plain English? Imagine your home's electrical system as a seesaw. The neutral wire is the pivot point that keeps everything balan…
Why Is My Consumer Unit Making a Humming Noise? Hearing a hum from your consumer unit (fuse box) is more common than you might think, but it always deserves at…
What Part P Means for You as a Homeowner Part P of the Building Regulations came into force in England and Wales on 1 January 2005. It is the law that makes do…
Can I Replace a Halogen Bulb with an LED? The short answer is yes — and it's one of the easiest energy-saving upgrades you can make at home. Most LED bulbs are…
What Is Touch Voltage and Why Does It Matter? Touch voltage is the voltage you can receive across your body when you touch something metallic — like a washing…
Why Your RCD Keeps Tripping Randomly An RCD (Residual Current Device) is designed to protect you from electric shock and fire by cutting power the instant it d…
Why Won't My Consumer Unit Main Breaker Reset? The main switch (sometimes called the main breaker or incomer) in your consumer unit is a safety device. When it…
Why Is My Wall Light Sparking When I Switch It On? Seeing a spark from a wall light switch is understandably alarming, and you are right to take it seriously.…
What Is a Split Neutral Fault? A split neutral fault happens when the neutral wire in your electrical circuit breaks or becomes disconnected, while the live wi…
Voltage on My Earth Wire — What Does It Mean? Finding voltage on an earth conductor can be alarming, and rightly so. The earth wire is supposed to sit at 0 V a…
Why Your Empty Socket Feels Hot — What You Need to Know If a socket feels warm or hot to the touch and nothing is plugged into it, this is not normal and shoul…
An isolation switch catching fire is a serious electrical emergency — here is what you need to know and do. Immediate steps to take: Call 999 immediately — do…
Why Is My Old Fuse Box Making Popping Sounds? A popping or cracking sound from your fuse box is not normal and should never be ignored. It almost always means…
Why Is My Home at Risk of Electrical Fire? Electrical fires account for around 20,000 house fires per year in the UK, and the worrying part is that most start…
Why Is My Socket Sparking at Night? Seeing sparks from a socket — especially at night when things are quiet — is understandably alarming. The good news is that…
Why Is My Neutral Conductor Overheating in the Fusebox? Finding a hot, discoloured, or burning-smelling wire in your fusebox (consumer unit) is alarming — and…
Water Inside Your Consumer Unit — What It Means and What To Do Finding water inside your consumer unit (fuse box) is a serious issue that must be treated as an…
What Does a Burning Plastic Smell from My Consumer Unit Mean? A burning or acrid plastic smell coming from your consumer unit (fuse box) is one of the clearest…
Do I Need a Dedicated Circuit for My EV Charger at Home? The short answer is yes — almost every home EV charger (also called an EVSE or wallbox) installed in t…
Can I Replace My Fuse Board Myself? The short answer is no, not legally — and here is why that matters for your home and your insurance. What the Law Says In…
Neutral vs Earth — What Every Homeowner Should Know If you've ever looked inside a plug or a consumer unit, you'll have seen three wires: live (brown), neutral…
What a Failed EICR Means for You An EICR (Electrical Installation Condition Report) is a formal inspection of your home's wiring, consumer unit, sockets, and e…
What Cable Size Do I Need for an EV Charger at Home? Choosing the right cable for your EV charger is one of the most important parts of the installation. Using…
Why Is My Breaker Crackling? (Plain English Explanation) If you can hear a crackling, fizzing, or popping noise coming from your consumer unit (fusebox), take…
Do I Need a Part P Certificate for DIY Electrical Work? Part P of the Building Regulations applies to all electrical work in dwellings in England. It was intro…
Why Is My Neutral Wire Overheating? A Homeowner's Guide Finding a warm or discoloured neutral wire is understandably alarming, and rightly so — it is a genuine…
How Often Should You Get an EICR in the UK? An Electrical Installation Condition Report (EICR) is a formal inspection of the wiring and electrical systems in y…
Is It Illegal to Have No RCD Protection in Your Home? The short answer is: not automatically illegal for existing homes, but it is a serious safety issue — and…
Why Your Breaker Keeps Tripping — Plain English Explanation Your consumer unit (fuse box) contains circuit breakers — small switches that automatically cut the…
Using a 13-Amp Socket to Charge Your EV — What Every Homeowner Should Know A standard three-pin 13-amp socket — the type found in every UK home — can be used t…
Why Is My Socket Hot? What Every Homeowner Should Know A socket that feels warm or hot is not normal and should never be ignored. In most UK homes, a standard…
Why Is My Consumer Unit Hot? It's completely normal for a consumer unit (fuse box) to feel slightly warm during periods of heavy electrical use — this is just…
Why Does My Socket Smell Burnt? A burning smell from an electrical socket is always a warning sign that something is wrong and potentially dangerous. It should…
What Causes an Electrical Fire in a Home? Electrical fires start when heat builds up somewhere in your wiring system to the point where it ignites surrounding…
Do Landlords Need an EICR Certificate by Law? If you are a landlord renting out a property in the UK, the short answer is yes — an EICR is a legal requirement,…
What is an EICR and Do I Need One? An Electrical Installation Condition Report (EICR) is an official document produced after a thorough inspection and testing…
A consumer unit fire is one of the most serious electrical emergencies you can face at home. Consumer units — also called fuse boxes — contain live busbars, MCB…
Why Is My Socket Smoking or Sparking? A smoking or sparking socket is never normal and should always be treated as an emergency. Here is what it means and what…
Why Is My Fuse Board Buzzing? (Plain English Explanation) Hearing a buzz or hum coming from your fuse board (also called a consumer unit) can be unsettling, bu…
Why Your EV Charger Keeps Tripping the RCD If your electric vehicle charger keeps tripping the RCD (the safety switch in your consumer unit or garage board), y…
Why Your Outside Socket Keeps Tripping the RCD An RCD (Residual Current Device) is a safety switch in your consumer unit (fusebox) that cuts power within milli…
Why Is My Washing Machine Tripping the RCD? An RCD (Residual Current Device) is a safety switch fitted in your consumer unit (fusebox) that detects tiny electr…
Why Your RCD Keeps Tripping With Nothing Plugged In If your RCD (Residual Current Device — the switch in your consumer unit labelled 'RCD' or 'Test') trips eve…
Why Does My RCD Keep Tripping at Night? An RCD (Residual Current Device) is a life-saving safety device in your consumer unit (fusebox). It monitors electrical…
Why Won't My RCD Reset? An RCD (Residual Current Device) is a safety switch in your consumer unit (fusebox) that trips automatically when it detects electricit…
Why Your RCD Trips in the Rain An RCD (Residual Current Device) is a safety device that trips when it detects electricity leaking to earth — for example throug…
Why Does My RCD Keep Tripping? An RCD (Residual Current Device) is the safety switch in your consumer unit (fuse box) that protects you from electric shock and…
LEDs flicker or glow when off because a very small current is still getting to the lamp. That trickle can come from: - Illuminated switches, two‑wire dimmers, o…
