A burning smell from a socket, switch, appliance or consumer unit should never be ignored.
Electrical components can overheat without producing visible flames. In some cases, the first sign of a developing fault is an unusual hot-plastic, fish-like or burning smell.
For homeowners and businesses in Bordon, acting quickly and booking Electrical Fault Finding can prevent a small fault from causing extensive heat damage or fire.
What does an electrical fault smell like?
Electrical overheating can create several different odours.
People often describe the smell as:
- Burning plastic
- Hot rubber
- Fishy
- Metallic
- Smoky
- Chemical
- Melting insulation
The smell depends on which material is overheating.
Plastic accessories, cable insulation, electronic components and terminal blocks can all produce different odours when damaged.
Where might the smell come from?
Common sources include:
- Plug sockets
- Light switches
- Fused connection units
- Shower switches
- Cooker switches
- Consumer units
- Appliances
- Extension leads
- Light fittings
- Electrical joints
The smell may appear to move through a room, making the source difficult to locate.
Heat can also travel along cables or be carried by airflow.
What causes electrical overheating?
Common causes include:
- Loose terminals
- Overloaded sockets
- Worn accessories
- Damaged plugs
- Faulty appliances
- Poor electrical joints
- Incorrectly terminated cables
- Undersized connections
- Arcing
- Corrosion
- Heat-damaged conductors
Loose connections are particularly dangerous.
When current flows through a poor connection, resistance creates heat. The connection may gradually become hotter and damage the surrounding insulation.
Why might the circuit breaker not trip?
A loose connection can overheat without drawing enough current to operate the breaker.
The breaker protects against excessive current, but the current may remain within the normal range while the resistance at one connection generates intense localised heat.
This is why a socket or switch can melt even though the protective device has not operated.
What should you do immediately?
Where it is safe to do so:
- Stop using the affected appliance or circuit.
- Switch off the relevant circuit at the consumer unit.
- Unplug equipment if it can be done safely.
- Keep people away from the affected area.
- Arrange urgent electrical investigation.
Do not remove covers or touch equipment that is hot, damaged or showing signs of arcing.
If there is smoke, active fire or immediate danger, leave the property and call the emergency services.
Warning signs to look for
A burning smell may be accompanied by:
- Discolouration
- Scorch marks
- Melted plastic
- Crackling
- Buzzing
- Sparks
- Hot accessories
- Flickering lights
- Intermittent power
- Repeated tripping
Any of these signs require prompt attention.
Common problem areas
- Plug sockets
Sockets may overheat because of loose terminals, worn contacts or overloaded plugs.
- Shower switches
Electric showers draw a high current. Loose connections in pull switches and isolators can generate significant heat.
- Cooker switches
Cookers and hobs also draw high currents. Heat damage around the switch or connection unit should be investigated immediately.
- Consumer units
A burning smell near the consumer unit may indicate loose connections, damaged protective devices or overheating busbar connections.
- Extension leads
Overloaded or coiled extension leads can overheat, particularly when supplying heaters or other high-powered equipment.
Do not continue using it because it still works
An accessory may continue supplying power even while it is overheating.
The fact that an appliance, socket or switch still operates does not mean it is safe.
Continued use may worsen the damage.
Urgent electrical fault finding in Bordon
Wessex Electrical Services Ltd investigates burning smells, overheating, damaged accessories and electrical faults throughout Bordon.
We can inspect:
- Sockets
- Switches
- Consumer units
- Cooker circuits
- Shower circuits
- Lighting
- Fixed wiring
- Outdoor equipment
- Electrical joints
Where damaged equipment is found, we isolate it, identify the cause and explain the repair options clearly.
We are NAPIT Registered, Which? Trusted Trader approved, Trading Standards Approved and TrustMark endorsed.
If you notice a burning or fishy electrical smell in your Bordon property, stop using the affected equipment and contact Wessex Electrical Services Ltd for urgent assistance.
Call 01420 384247
