Written by H. Irwin Electrical | Published on July 2025
A burning electrical smell in your home almost always means something is overheating , and that is a fire risk you need to take seriously right away. It could be a faulty outlet, damaged wiring, an overloaded circuit, or a failing appliance.
This article covers the most common causes of electrical burning smells, how to identify where it is coming from, what to do immediately, and when you need a licensed electrician. If you are in Adelaide , including Glenelg, Plympton, Marion, Unley, or any of the surrounding suburbs , H. Irwin Electrical can help fast.
Understand Why Electrical Burning Smells Are a Serious Warning
Electrical systems are designed to operate within strict temperature limits. When something goes wrong, heat builds up in wiring, outlets, or components. That heat breaks down insulation and other materials, producing a distinct burning smell.
Unlike a burning smell from food or a candle, an electrical burning smell has a sharp, acrid, or plastic-like quality. Some people describe it as similar to burning rubber or a hot iron left on fabric. If you smell something like that, do not dismiss it.
Australian electrical fires cause hundreds of house fires each year. In South Australia, older housing stock , particularly homes built before the 1990s in suburbs like Glandore, Kurralta Park, and Beverley , can have wiring that is more prone to failure due to age and wear.
Acting quickly on a burning electrical smell can be the difference between a minor repair and a major house fire.
Identify the Most Common Causes of Electrical Burning Smells
Knowing what typically causes these smells helps you communicate clearly with your electrician and understand the urgency.
| Cause | What It Smells Like | Urgency Level |
|---|---|---|
| Overloaded circuit | Hot plastic or rubber | High |
| Faulty or burnt outlet | Sharp, acrid burning | Very High |
| Damaged or melting wiring insulation | Burnt rubber or plastic | Very High |
| Failing appliance or motor | Burning or metallic smell | Medium to High |
| Loose electrical connection | Faint burning or smoky odour | High |
| Overheating switchboard or breaker | Hot plastic or burning smell near meter box | Very High |
| New appliance or heater first use | Mild burning or dusty smell | Low (monitor closely) |
A new appliance or heater producing a mild smell on first use is often just dust burning off. This typically clears within 30 minutes. Any other scenario from the table above warrants immediate action.
Follow These Immediate Steps When You Smell Burning Electricity
Speed matters here. Follow these steps in order.
- Stop and locate the smell. Walk through your home and try to identify which room or area the smell is strongest in. Check near power outlets, light switches, the switchboard, and any recently used appliances.
- Turn off and unplug appliances in the area. If you suspect an appliance, turn it off at the switch and unplug it from the wall immediately.
- Check for visible signs of damage. Look for scorch marks around outlets, discolouration on switch plates, or any smoke. Do not touch anything that looks burnt or damaged.
- Turn off the circuit at your switchboard if you can identify it. If the smell is coming from a specific room or outlet, switch off the relevant circuit breaker at your meter box.
- If you see smoke, flames, or cannot find the source, evacuate and call 000. Do not re-enter the building until emergency services say it is safe.
- Call a licensed electrician. Even if you cannot see obvious damage, a licensed electrician needs to inspect the system before you use that circuit again.
Do not simply turn a breaker back on and assume the problem has resolved itself. The underlying cause is still there and will continue to be a hazard.
Recognise the Difference Between Dangerous and Non-Dangerous Smells
Not every unusual smell from an electrical source is an emergency, but knowing the difference is important so you can respond appropriately.
| Situation | Likely Cause | What To Do |
|---|---|---|
| Mild dusty smell from heater on first use of winter | Dust burning off heating element | Ventilate the room, monitor for 30 minutes |
| Sharp burning smell from a power outlet | Faulty outlet, arcing, or overload | Turn off circuit, call electrician immediately |
| Burning smell near the meter box or switchboard | Failing breaker, overloaded panel, or loose wiring | Do not touch, call electrician urgently |
| Fish or urine-like burning smell from walls or ceiling | Overheating wiring or burning insulation inside the wall | Evacuate if strong, call electrician immediately |
| Burning rubber smell from a specific appliance | Failing motor or internal fault | Unplug appliance, do not use again until inspected |
A fish or urine-like smell with no obvious source is particularly concerning. It often indicates plastic insulation around wiring inside your walls is melting. This requires an urgent inspection.
Know When Older Adelaide Homes Are at Greater Risk
Many homes in inner and middle Adelaide suburbs were built during the 1950s through to the 1980s. Suburbs like Somerton Park, Hyde Park, Prospect, North Adelaide, and Fulham have a significant number of properties with original or partially updated wiring.
Older wiring systems in these homes can include:
- Rubber-insulated wiring that has become brittle and cracked with age
- Cloth-covered wiring that offers minimal protection
- Knob and tube wiring in some pre-war properties
- Undersized circuits not designed for modern appliance loads
- Switchboards with old ceramic fuses rather than modern safety switches
Modern households in these older homes often run far more electrical load than the wiring was ever designed to handle. Air conditioning, EV chargers, induction cooktops, and multiple screens all add significant demand to ageing infrastructure.
H. Irwin Electrical regularly works in these suburbs and is familiar with the wiring configurations common to homes in this region. If your home is older and you have not had an electrical inspection recently, it is worth organising one before a burning smell forces the issue.
Understand What an Electrician Will Check During an Inspection
When you call a licensed electrician after detecting a burning smell, here is what a proper inspection typically involves.
- Outlet and switch inspection: The electrician will check every outlet and switch in the affected area for signs of arcing, heat damage, loose connections, or burn marks.
- Switchboard and circuit breaker check: The switchboard is inspected for overloading, failing breakers, loose terminals, and evidence of heat damage.
- Wiring inspection: Accessible wiring in the roof space, subfloor, or wall cavities is checked for damage, deterioration, or improper installation.
- Load assessment: The electrician checks whether your circuits are appropriately rated for the appliances currently connected.
- Safety switch test: All residual current devices (RCDs) are tested to confirm they trip correctly within the required time.
- Thermal imaging (if available): Some electricians use thermal cameras to detect hotspots inside walls without needing to open them up.
After the inspection, the electrician will explain what they found, what caused the smell, and what repairs or upgrades are needed. You should receive this in writing so you have a clear record.
FAQs on Burning Electrical Smells
Is a burning electrical smell always dangerous?
In most cases, yes. A burning electrical smell indicates something is overheating, which carries a genuine fire risk. The only low-risk exception is a mild dusty smell from a heater being used for the first time in the season. Any sharp, plastic, or acrid burning smell should be treated as urgent.
Can I use the rest of my house if only one room smells like burning electricity?
You can use other areas while you wait for an electrician, but turn off the circuit for the affected area at your switchboard. Do not leave the house unattended if the smell is strong or you are unsure of the source. Keep a working fire extinguisher and smoke alarms tested and functional.
Why does my outlet smell like burning but look fine?
Damage inside an outlet is often not visible from the surface. Arcing, loose connections, and heat damage can occur behind the outlet plate without leaving obvious external marks. A licensed electrician can remove the outlet cover safely and inspect the wiring behind it.
How much does it cost to have an electrician check a burning smell in Adelaide?
A standard callout and inspection in Adelaide typically costs between $120 and $200 depending on the time of day and what is involved. If repairs are needed, costs will vary based on what is found. H. Irwin Electrical can provide a clear quote once the inspection is complete.
Could my switchboard be the source of the burning smell?
Yes, and this is one of the more serious scenarios. A switchboard that smells like burning could indicate a failing circuit breaker, overloaded panel, or loose busbar connection. Do not attempt to open or inspect the switchboard yourself. Call a licensed electrician immediately.
My house is older , should I get my wiring inspected even without a burning smell?
If your home is more than 30 years old and has not had a wiring inspection, it is a smart precaution. Ageing wiring in homes across Henley Beach, West Beach, Richmond, and similar suburbs can deteriorate silently. An inspection gives you a clear picture of your home’s electrical safety before problems occur.
Wrap Up and Next Steps
A burning electrical smell is your home’s way of telling you something is wrong. Whether it is a faulty outlet, ageing wiring, an overloaded circuit, or a failing switchboard, the right move is always to stop using the affected area and get a licensed electrician in to inspect it.
H. Irwin Electrical serves homeowners across Glenelg, Glenelg North, Somerton Park, Marion, Plympton, Glandore, Kurralta Park, Unley, Hyde Park, North Adelaide, Henley Beach, West Beach, Richmond, Fulham, Prospect, and Beverley. If you have noticed a burning smell in your home, call us now on 0432 270 757 to arrange an urgent inspection.
