In short
- Smoke or fire: get out and call 911.
- Smell, sparks, hot outlet or switch: turn off the circuit at the panel if it’s safe, and unplug what is plugged in.
- A panel giving off abnormal heat calls for a master electrician, according to Québec.ca.
- Extension cords are temporary solutions, and power bars are for low-consumption devices only.
- The cause is often a loose connection or a damaged wire, which can produce an electrical arc.
In this guide
First, your safety
- Smoke or fire: get out of the house and call 911.
- Burning smell, sparks, hot outlet or switch: if you can do so safely, turn off the circuit’s breaker at the panel, or the main power. Never walk through water to reach the panel.
- Unplug what is plugged into the circuit, pulling on the plug.
What to do, depending on what you see
| What you see | Right away | Then |
|---|---|---|
| Smoke or fire | Get out, call 911 | — |
| Burning or hot-plastic smell | Turn off the circuit at the panel, unplug | Have the circuit checked |
| Hot or discoloured outlet or switch | Unplug, stop using the outlet | Have it replaced and the connections checked |
| Panel giving off abnormal heat | Don’t open the panel | Master electrician, according to Québec.ca |
| Breaker or fuse that trips | Check whether too many appliances are on the circuit | No obvious reason: inspection |
| Hot extension cord or cracked jacket | Unplug it | Replace it |
Signs not to ignore
- An outlet, switch or the panel that is hot, discoloured or gives off a smell.
- Crackling or sparks.
- A breaker or fuse that trips repeatedly, or a fuse bigger than the circuit label.
- An extension cord that heats up or has a cracked jacket.
- Repeated power dips.
Why it’s serious
A loose connection, a damaged wire or a cracked jacket can produce an electrical arc, a small spark hot enough to start a fire. An ordinary breaker doesn’t always detect it. Québec.ca reminds us: for repairs to your installation, always call a master electrician.
Extension cords and power bars: Québec.ca’s advice
- Choose certified extension cords and power bars with a built-in breaker.
- An extension cord is a temporary solution: unplug it after use, and unroll it before using it.
- Keep power bars for low-consumption devices.
- Don’t trap it under a rug or behind furniture, don’t hang it on a hook or a nail, and never paint it: paint dries out the jacket.
- Replace any cord that is damaged or gives off heat.
- Outdoors, use cords designed for outdoor use, and weatherproof outlets and switches.
If you’re missing an outlet somewhere, it’s better to add one than to leave an extension cord there permanently.
What the electrician checks
The circuit’s connections, the outlets and switches, the condition of the panel and breakers, and the circuit’s load. They replace what is damaged and tell you whether arc-fault protection or an extra circuit would solve the problem.
Prevention
- Arc-fault protection cuts out when it recognizes an arc: see Arc-fault breakers (AFCI).
- Québec.ca asks that bathroom and outdoor outlets have a built-in breaker: see GFCI outlets.
- Replace missing covers on outlets and junction boxes.
- Smoke alarms on every floor: see Smoke alarms.
- An older house with fuses or aluminum wiring deserves a check: see Aluminum wiring.
After an outage or damage
Hydro-Québec recommends having a damaged installation inspected by a master electrician. Sparks, broken or frayed wires, an unusual smell or heat: turn off the power at the panel.
With LTE Électrique
At LTE Électrique, William Letendre is a master electrician and a CMEQ member; reach us Monday to Friday, 8 a.m. to 4 p.m., at 819 570-9836, by call or text.
Frequently asked questions
- Is a crackling breaker dangerous?
- It isn’t normal. Turn it off if you can do so safely, leave it alone and have the panel checked by a master electrician.
- My outlet is warm when the appliance runs: is that serious?
- An outlet or switch that is hot, discoloured or gives off a smell must be checked. Unplug the appliance and have the circuit inspected.
- A fuse blows for no obvious reason: what should I do?
- First check whether too many appliances are on the same circuit. If there is no obvious reason, Québec.ca advises calling a master electrician for an inspection.
- My electrical panel is hot: is that normal?
- No. According to Québec.ca, if your panel gives off abnormal heat, contact a master electrician. Don’t open the panel yourself.
- Can I leave an extension cord in place permanently?
- No. Québec.ca points out that extension cords are temporary solutions, to unplug after use. If you’re missing an outlet somewhere, the electrician can add one.
- Can I plug a space heater into a power bar?
- No: Québec.ca reserves power bars for low-consumption devices, and a space heater draws a lot. Plug it directly into a wall outlet.
- Can I reset the breaker after a burning smell?
- Leave it off until the cause is found. Unplug the appliances on the circuit and have the outlets, connections and panel checked.
- Do you offer an emergency service?
- No. If there is smoke or fire, get out and call 911. For a hot outlet or a smell, once the circuit is off, reach us Monday to Friday, 8 a.m. to 4 p.m.
Sources
- Prévenir les risques d’incendie liés à l’électricité, Gouvernement du Québec, checked on October 20, 2026
- Après une panne, Hydro-Québec, checked on October 20, 2026
About this guide
Written by LTE Électrique, a master electrician’s business in Sherbrooke (RBQ licence 5874-5597-01, CMEQ member). Every rule comes from Québec’s Construction Code or an official source, listed above with the date it was checked. French version reviewed by William Letendre, master electrician, on October 21, 2026.
About usCite this guide
To cite this guide, use its title, author and address:
“Burning smell, hot outlet, crackling breaker: what to do”, LTE Électrique, https://www.lteelectrique.com/en/guides/burning-smell-hot-outlet-what-to-do, French version reviewed by William Letendre, master electrician, on October 21, 2026.