# Burning Smell From an Outlet? Do This Now | New Orleans Electrical Services

> A burning or fishy smell from an outlet means conductor insulation is overheating. Shut the circuit off now. What to do next, New Orleans. Call 24/7.

URL: https://neworleanselectricalservices.com/guide/burning-smell-from-outlet/

Shut that circuit off at the panel now. A burning, hot-plastic or fishy smell from an outlet means conductor insulation is overheating, and the smell arrives before there is anything to see. If you cannot identify the circuit, shut off the main.

## Do this first

1. **Switch off the breaker for that circuit.** If you cannot identify it with
   confidence, switch off the main.
2. **Do not unplug anything from the outlet.** Breaking or making a connection
   on a hot, faulted circuit can arc. De-energize first, then unplug.
3. **Do not open the outlet or the panel** to investigate.
4. **If the smell is at the panel itself**, shut off the main from outside if
   your service allows it, and leave the cover alone entirely.
5. **If you see smoke or scorching, or the smell is strong and spreading**,
   leave and call 911 first. Electrical fires inside a wall can be well
   established before anything is visible in the room.

Then call an electrician. This is a same-day problem regardless of the hour.

## Why the smell means what it means

That distinctive hot-plastic or fishy odour is thermoset insulation breaking
down. It is the smell of a connection that has gone resistive and is now
converting electrical energy into heat at a point that was never designed to
get hot.

The important part: **the smell reliably precedes the visible evidence.** By
the time there is scorching on a faceplate, the connection behind it has been
running hot for a long time. That is why "I will look at it this weekend" is
the wrong response, and why we treat it as a dispatch-now call rather than a
booking.

## The three causes we find most often here

**A failed back-stab connection.** Push-in terminals on the back of a
receptacle hold the conductor with a small spring clip. Decades of thermal
cycling relax that clip. Resistance climbs, the joint heats. This is the single
most common cause and it is why we replace rather than re-stab.

**A loose aluminum termination.** In homes wired between roughly 1965 and
1975, aluminum branch circuits fail at the screw terminals. Aluminum expands
and contracts more than copper, so every heating and cooling cycle works the
connection slightly looser. Very common in Metairie, Kenner and the postwar
Westbank subdivisions.

**An overloaded or undersized circuit.** Frequently a window unit or space
heater on a general lighting circuit, or a receptacle carrying a load through a
daisy chain of extensions.

A fourth, particular to this climate: **corroded terminations** in damp attics
and under-house spaces, especially where salt air reaches them. Corroded is
resistive, and resistive is hot.

## What not to do

Do not simply stop using that outlet and leave the circuit energized. The fault
is at a connection, not at the plug, and the connection stays hot whenever
anything downstream on that circuit draws current.

Do not reset a breaker that has tripped alongside the smell. It tripped for a
reason.

Do not spray anything into the outlet.

## What happens on our visit

We de-energize and verify dead, then open the device and the boxes upstream. We
thermal-check under load once it is safe to re-energize, because the visible
part of a box usually looks fine and the heat tells you where the fault is. We
give you the cause in writing before repairing.

Most single-device faults are repaired the same visit. Where the smell traces
back to aluminum branch wiring or deteriorated conductor, the conversation
becomes a larger one about remediation, and we will scope it honestly rather
than fixing one outlet and leaving the other forty.

## Bottom line

Shut the circuit off, do not investigate inside the box, and call. The
diagnostic is $95 to $145 with no after-hours surcharge, and a live person
answers at any hour: 504-336-6748.

## FAQ

### The smell went away. Am I fine?
No. The smell stops when the circuit stops drawing current through the faulty connection, not when the fault is fixed. It returns the next time that circuit is loaded, and each cycle degrades the connection further.

### It smells like fish. Is that the same thing?
Yes, and it is a well-known signature. Certain outlet and switch plastics give off a distinctly fishy odour as they overheat. Treat it exactly the same as a burning smell.

### Can I use the rest of the house?
If you have isolated the affected circuit at the panel and the smell has cleared, generally yes. If you had to shut the main, or if the smell was at the panel, wait for the electrician rather than restoring power to find out.