
A burning smell in a house is often caused by electrical problems that require immediate attention. This smell could be due to overloaded circuits, faulty wiring, or damaged components. In some cases, the problem may stem from an appliance plugged into a wall socket. If you detect a burning smell, it is important to act quickly to prevent potential hazards and fires.
| Characteristics | Values |
|---|---|
| Cause | Faulty wiring, overloaded circuits, damaged components, exposed wires, faulty switches, broken fuses, electrical arcing, gas leaks, ballast going out, fluorescent light fixtures, rusted sockets, rodents, or other appliances |
| Indication | Burning smell, acrid smell, chemical smell, chlorinated smell, sulfur smell, rotten egg smell, fishy smell, urine-like smell, ozone or metallic smell, paint thinner smell |
| Action | Shut off breakers, call an electrician, call 911, unplug appliances, turn off power to the panel, contact professionals, use a thermal camera, check for hot spots |
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What You'll Learn

Burning plastic, rubber, or cloth smell
A burning plastic, rubber, or cloth smell in your house can be alarming, but it's important to stay calm and take immediate action to address the issue. Here are some steps you can take:
Locating the Source
The first step is to locate the source of the burning smell. Turn off any appliances that may be the culprit, such as the oven, stove, or any electrical devices. If the smell is coming from a specific area, turn off the power to that part of the house by flipping the appropriate circuit breaker. Open windows and doors to ventilate the house and reduce the concentration of toxic fumes.
Common Sources
There are several common sources of burning plastic smells in the house:
- Electrical Issues: This includes faulty wiring, overloaded outlets, or damaged electrical components. Unsecured electrical connections can generate heat that melts the plastic insulation on wires.
- HVAC Systems: Heating, ventilation, and air conditioning (HVAC) systems can produce burning plastic smells due to dirt and grime buildup, gas leaks, or overheating. This may be caused by a clogged air filter, causing the blower motor to work harder and potentially overheating.
- Appliances: Various appliances, such as dishwashers, microwaves, blow dryers, and curling irons, can emit burning plastic smells due to overheating or friction between parts.
Resolving the Issue
Once you've located the source, take appropriate action:
- Electrical Issues: If the issue is electrical, turn off the power to the affected area and call a licensed electrician to inspect and resolve the problem.
- HVAC Systems: If the burning smell is coming from your HVAC system, turn off the system and contact an HVAC technician for emergency repairs.
- Appliances: Unplug any appliances that are emitting the burning smell and inspect them for damage. If you cannot identify the source of the smell or resolve the issue, contact a professional for assistance.
Remember, a burning plastic smell can indicate the presence of harmful substances and toxic fumes, including carbon monoxide. It's important to act swiftly to ensure your safety and prevent potential fire hazards.
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Fluorescent light fixture
If you are experiencing a burning smell in your home, it could be due to a fluorescent light fixture. Fluorescent light fixtures need a ballast to control the voltage. If the ballast is poorly built or improperly mounted, it can cause a burning smell. The humming or buzzing sound in a fluorescent light fixture is usually due to this reason. The ballast is a metal box with wires leading to it. If you open the fixture, you should be able to see it. Check if the mounting screws are tight and if there are any vibration-isolation spacers, inspect them. If you have a similar quiet fixture, compare the two to identify the problem. If the problem is with the ballast, you may need to replace it.
If you notice any strong smells near light fixtures, it could be due to an electrical problem. It could be a sign of faulty wiring or overloaded circuits. In such cases, it is recommended to call an electrician to evaluate and fix the problem. Do not use electrical power in that area until the issue has been addressed.
It is important to address burning smells promptly to prevent any fire hazards and ensure the safety of your home. If you are unable to identify the source of the burning smell, you should contact a professional electrician to inspect your light fixtures and the surrounding wiring.
In addition to fluorescent light fixtures, there are other potential sources of burning smells in your home. These include issues with wiring, circuit breakers, outlets, appliances, and exhaust fans. It is important to investigate and address any potential sources of electrical burning smells to maintain the safety of your home.
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Faulty wiring
If your house smells like electricity, it could be due to faulty wiring. Faulty wiring can lead to several issues, including overloaded circuits, shorts, and exposed wires. Overloaded circuits are a common problem, especially in older houses where the wiring may not be equipped to handle modern appliances. This can cause the wiring to overheat, melt, and potentially start a fire. In such cases, you may notice a burning smell coming from the wires, outlets, or switches.
Another issue with faulty wiring is shorts or short circuits. This can occur when wires are damaged due to excessive corrosion or when exposed to high temperatures. Shorts can also be caused by defective switches or broken fuses. When a short occurs, it can lead to arcing, which creates a burning smell and may cause a fire.
If you suspect faulty wiring, it is important to take immediate action to ensure your safety. First, turn off the circuit breaker to the affected area. Next, unplug any appliances or devices that may be contributing to the issue. Check for any visible signs of damage, such as charred outlets or exposed wires. If you notice any sparks, burning smells, or other unusual activity, contact a licensed electrician immediately.
To prevent issues with faulty wiring, it is recommended to have your electrical system inspected regularly by a professional. This is especially important in older homes, where wiring may be outdated or more susceptible to damage. Proper maintenance and timely repairs can help reduce the risk of electrical fires and ensure the safety of your home.
In summary, faulty wiring can lead to overloaded circuits, shorts, and exposed wires, resulting in burning smells and potential fire hazards. Taking prompt action and seeking professional assistance is crucial to ensure the safety of your home and prevent further damage. Regular inspections and maintenance by licensed electricians are highly recommended to mitigate these risks effectively.
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Natural gas or propane leak
If you smell natural gas or propane in your house, it is imperative that you take immediate action. Propane is odourless, but manufacturers add mercaptan, a harmless compound that produces a strong, distinctive odour similar to skunk spray or rotten eggs to alert customers to leaks. Before assuming that the smell is due to a gas leak, ensure that it is not coming from skunk spray, sewage, or garbage.
Natural gas can sometimes get stuck in grime, giving off a smell similar to that of natural gas. In such cases, a thorough cleaning of the area may help get rid of the smell. Dead rodents in the walls can also give off a similar smell. Additionally, partially burned gas can also smell like the odorant used in natural gas.
However, if you suspect a gas leak, it is crucial to follow these steps:
- Extinguish all open flames and avoid creating any sparks or using electrical devices, such as lighters, thermostats, light switches, and doorbells.
- If you suspect a major gas leak, evacuate the premises immediately, including any nearby vehicles, as they may also pose a safety risk.
- Contact your landlord, the gas company, emergency personnel, or the local fire department from a safe location. Follow the instructions provided by emergency services, who may advise evacuating the area or maintaining a safe distance.
There are other signs that can help indicate a natural gas or propane leak, including:
- Dead plants: Natural gas prevents plants from absorbing oxygen, causing them to wilt and die.
- Hissing sounds near gas lines: A hissing sound typically indicates a substantial leak. The louder the noise, the bigger the leak.
- Small bubbles: Perform the bubble test by mixing dish soap with water, wiping down the suspected area, and checking for bubbles.
- White mist or fog: Escaping gas from an underground line can cause condensation, resulting in visible fog or white mist near the ground, indicating a gas line rupture.
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Overloaded circuit
An overloaded circuit is one of the most common causes of an electrical burning smell in a house. This is especially true in older houses where the wiring may be outdated and unable to handle the load of modern appliances such as vacuum cleaners, blenders, and microwave ovens. Some circuits may also be wired for a single outlet and not multiple outlets, which can cause the wiring to overheat and melt, or even start a fire.
If your house has an older electrical system, it may not be equipped to handle the electrical load of multiple modern appliances. In this case, you may notice an electrical burning smell, which could indicate that your circuits are overloaded. This smell is often due to electrical overheating, which can cause the insulation or wiring to emit a burnt plastic or rubber odour.
If you suspect that your circuits are overloaded, it is important to take immediate action to avoid potential hazards. First, turn off the power to the affected panel and unplug any unnecessary electrical appliances. Then, contact a licensed electrician to diagnose and address the issue. An electrician will be able to identify the source of the overload and advise you on steps to prevent it from occurring in the future, such as avoiding overloading circuits or ensuring that wiring is properly insulated.
In some cases, overloaded circuits may be caused by faulty appliances. If you notice an electrical burning smell coming from an appliance plugged into a wall socket, unplug it immediately and have it inspected by a professional electrician. It is important to take preventative measures and know the signs of risk to ensure the safety and reliability of your home's electrical system.
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Frequently asked questions
An electrical burning smell could be caused by overloaded circuits, faulty wiring, or damaged components. It could also be caused by an electrical appliance that is plugged into a wall socket. If you are unable to identify the source of the smell, you should call an electrician.
You can use a laser thermometer to check the temperature of all electrical appliances and identify any that are hotter than others. You can also use a consumer-grade infrared (thermal) camera attachment for your smartphone to identify hot spots. If you are unable to identify the source of the smell, you should call an electrician.
If the smell is coming from an appliance that is plugged into a wall socket, you should unplug it immediately and have it inspected by a professional electrician. If the smell is coming from your electrical panel, you should shut off the power to the panel and contact a professional for help.
An electrical burning smell could indicate an electrical fire or an imminent electrical fire. Electrical fires can start in practically no time under the right conditions. If there are signs of an active fire, you should call 911 immediately.











































