Appliance Warning Signs: When to Stop Using It

Quick answer

Some appliance safety warning signs mean you should stop using the appliance right away: a gas smell, smoke, a burning or electrical smell, sparks, a hot or melted plug or outlet, a shock or tingle when you touch it, or water near electrical parts. Others, like a breaker that trips repeatedly or new grinding noises, mean stop and get it checked soon. This guide is for anyone who wants to know when it’s safe to keep using an appliance and when to call a qualified technician.

Safety first

• Gas smell: don’t switch lights or appliances on or off, don’t use a lighter, and leave the home. Call your gas utility or 911 from outside.
• Smoke or flames: get everyone out and call 911. Don’t open an oven or microwave with a fire inside; keep the door closed and turn it off only if you can do so safely.
• Water near electrics: don’t touch the appliance, plug or wet floor. Switch off the circuit breaker if you can reach the panel without walking through water.
• Carbon monoxide alarm: if it sounds, get everyone outside to fresh air and call 911 or the fire department.
• Never try to fix electrical, gas or internal problems yourself.

Before you begin

Learn where your electrical panel is and how the breakers are labeled. A circuit breaker is a switch that cuts power when a circuit is overloaded; a tripped one sits in the middle or “off” position. Some outlets near water are GFCI outlets (the kind with Test and Reset buttons), which cut power when they sense a fault.

Make sure smoke alarms work on every level of your home, and that you have carbon monoxide alarms if you have gas appliances or an attached garage. Keep owner’s manuals handy so you can look up warnings and error codes for your model.

Possible causes

Warning signs often come from a few underlying issues. Here’s what’s behind them.

Things you can check yourself:

• A clogged dryer lint screen causing overheating and a hot smell.
• Food spills or grease burning in an oven or on a cooktop.
• Metal or foil in a microwave causing sparks.
• An overloaded outlet or power strip, especially with heavy appliances like space heaters or microwaves.
• A damaged cord that’s been pinched behind an appliance.
• A washer or fridge leak from a loose filter or overloaded drum.

Problems that need a technician:

• Burning electrical parts, wiring faults or a failing motor.
• Gas leaks, poor burner flames or a carbon monoxide alarm.
• Damage inside a microwave’s cabinet, which holds high-voltage parts even when unplugged.
• A refrigerator’s sealed system or an internal water valve failure.

How to respond to a warning sign

1. Decide if it’s an emergency. Gas smell, smoke, flames, sparks that don’t stop, or water around an electrical outlet are emergencies. Is it one of these? Follow the Safety first steps above and stop here. If not, go to step 2.
2. Turn the appliance off and unplug it if it’s safe. Only touch the plug if your hands are dry, the floor is dry, and the plug isn’t hot or melted. Otherwise, switch off the breaker. Is the plug or outlet scorched, discolored or warm? Don’t use that outlet again until an electrician checks it.
3. Note what you saw, heard or smelled. Write down when it happened, what cycle was running, and any error code on the display. Look the code up in your owner’s manual or on the manufacturer’s support site, since codes vary by brand and model.
4. Check simple causes the manual allows. For a hot-smelling dryer, clean the lint screen; see how to clean a dryer lint screen and vent safely. For a sparking microwave, check for metal or foil; see microwave sparking or arcing. Did you find and remove a simple cause? If yes, try the appliance once while you watch it closely. If the sign returns, stop using it.
5. Watch for breaker trips. If a breaker trips once, reset it once. If it trips again when the appliance runs, leave it off. Repeated trips point to an electrical fault in the appliance or circuit.
6. Take shocks seriously. If you feel a tingle or shock from any appliance, stop using it and unplug it or switch off the breaker. This always needs a professional.
7. Keep the appliance out of use until it’s checked. Put a note on it so family members or roommates don’t turn it on.

When to stop and call a qualified technician

Stop using the appliance and contact a qualified appliance technician, the manufacturer’s service network, or an electrician if:

• You smelled burning, saw smoke or sparks, or found a hot or melted plug or outlet.
• You felt a shock or tingle.
• A breaker trips repeatedly when the appliance runs.
• There’s a gas smell, a yellow or sooty flame on a gas burner, or a carbon monoxide alarm. Call your gas utility first.
• Water is leaking near electrical parts or from inside the appliance.
• An error code keeps returning after you follow the manual.
• The appliance makes new loud grinding, banging or squealing noises, or the cord is damaged.

Regular upkeep can help you notice these signs early; see the appliance maintenance checklist.

FAQ

Is a burning smell from a new appliance normal?

Some new ovens and dryers give off a light smell during the first uses as factory coatings burn off, and the manual often mentions this. A strong smell, smoke, or a smell that continues after the first few uses is not normal. Turn it off and get it checked.

What should I do if an appliance gives me a small shock?

Stop using it right away. Unplug it with dry hands if it’s safe, or switch off its breaker. Even a mild tingle can mean an electrical fault, so have a qualified technician or electrician check it before using it again.

Can I keep using an appliance that trips the breaker?

It’s best not to. A single trip can happen from an overloaded circuit, but repeated trips suggest a fault. Leave the appliance off and have it checked.

Should I plug large appliances into extension cords or power strips?

Safety organizations generally advise plugging major appliances directly into a wall outlet. Extension cords and power strips can overheat under heavy loads. Check your owner’s manual for your appliance’s requirements.

Why do I need carbon monoxide alarms?

Gas appliances can produce carbon monoxide, an odorless gas that can make people seriously ill. Working alarms are the only reliable way to detect it. Test them regularly and replace them as the maker recommends.