Cooktop
Burning Smell
A hot, electrical, plastic or scorched odor comes from the cooking surface, the knobs, the downdraft grille or the cabinet under the counter.
Mon–Sat, 8am–8pm
- Gas, fire, broken glass or live current
- 5 questions that narrow it
- 6 causes, cheapest first
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Smell gas? Get everyone out first. No gas: switch the breaker off
An electrical or hot-plastic smell from a cooktop is urgent. Switch the breaker off, call 911 for fire or smoke, and keep the cooktop out of use until the source is found. A food smell that fades once the spill has burned away only needs cleaning.
What it
usually means.
Not every burning smell means a part is failing. Spills that crept under a burner cap, a coil drip bowl full of grease, or sauce baked onto the glass all smell strongly as they char and fade once they are gone. What sets a built-in cooktop apart is where the rest of it lives: the wiring box, the control boards and, on induction and downdraft models, a fan all sit in a closed cabinet under the counter, so heat and odor from a failing connection often reach you through the cabinet doors first. A smell of hot plastic, a sharp electrical tang, a knob that looks melted, or an odor that returns with the cooktop switched off points to wiring, a switch or a board, and that is a reason to cut power before anything else.
The 6 causes, cheapest first
Answer these first
Does the smell come from a single burner or zone, or from the cooktop as a whole?
Is it food and grease, or hot plastic with an electrical edge to it?
Is it stronger with the cabinet under the counter open, or near the control knobs?
Does it go away when the cooktop is off, or does it stay?
Have lights flickered, has anything buzzed, or has a breaker tripped at the same time?
Check these
before you book.
Cooktop burning smell: 5 checks, and none of them costs anything.
If the smell is electrical, a knob looks melted or anything smokes, turn off the cooktop's breaker at the panel right away.
If flames appear or smoke pours from the top or the cabinet, get everyone out and call 911.
Once power is off and the surface is cold, look for a spill under the caps, in the drip bowls or along the glass edge.
Also worth checking
- Keep the cabinet under the cooktop shut, with nothing pushed against the wiring box, until it has been inspected.
- Note which burner or zone was on and whether the smell seemed to come from the top or from below.
The causes,
cheapest first.
6 things cooktop burning smell turns out to be, from spill charring under a cap, in a drip bowl or on the glass to downdraft blower motor running hot.
The cost guide-
01 no repair
Spill charring under a cap, in a drip bowl or on the glass
Boil-overs run under burner caps, into coil drip bowls and along the edge of a glass top. They smoke until they have burned away; clean them off once the surface is cold.
-
02 low
Coil receptacle overheating
On a coil cooktop each element plugs into a receptacle beneath the top. When its terminals pit or loosen, the contact arcs, the receptacle scorches and the coil works only now and then.
-
03 low to moderate
Switch terminal running hot behind a knob
The infinite switch behind each electric knob carries the full current of its element. A loose terminal or worn contacts run hot, and the knob or the trim around it can smell of warm plastic.
-
04 moderate
Browned wire in the junction box under the counter
An electric or induction cooktop is wired to a box in the cabinet below. A loose connection there heats with every use, browns its insulation and can smell well before any breaker trips.
-
05 moderate to highest
Induction power board overheating
Induction electronics depend on a fan drawing air through a gap under the counter. A blocked inlet, a stalled fan or a failing power stage leaves the underside hot and gives off an electrical odor.
-
06 moderate
Downdraft blower motor running hot
A downdraft blower dragging on worn bearings, or straining against a grease-clogged filter, warms its windings, and the odor comes back up through the vent opening.
What else
it could be.
Most often confused with cooktop tripping breaker, then cooktop burner or element won't turn off.
All problemsCodes that come with it
F1Bosch · Temperature and overheat sensorsF1Gaggenau · Temperature and overheat sensorsF21KitchenAid · Temperature and overheat sensorsC82Maytag · Temperature and overheat sensorsC1Samsung · Temperature and overheat sensorsF1Thermador · Temperature and overheat sensors
Also related
The makes
it happens on.
29 makes on this site; cooktop burning smell can show up on any of them. Each mark opens that make's own page.
All 29 brandsCooktop Burning Smell,
where we come out.
9 metros, each with its own page.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions about
cooktop burning smell.
My new cooktop smells during its first few uses. Is something wrong?
Could the smell be coming from the cabinet below the cooktop?
Can I keep using the other burners in the meantime?
One knob looks warped. What does that tell me?
Back to your everyday
Still seeing cooktop burning smell?
Book with what you checked above — 5 answers save the technician the first part of the visit.