KitchenAid Dishwasher Burning Smell: Causes & Fix

Quick Answer: What's Causing the Burning Smell#

Most likely, and the least serious: a plastic lid or utensil slipped off the upper rack onto the exposed heating element at the tub bottom and melted, giving off an acrid smell during heated dry or sanitize. But a burning smell can also mean active electrical failure — a wash motor drawing too much current, a heating element shorted internally, or a control-board relay arcing — and those worsen fast. So the first move is not diagnosis but safety: cancel the cycle, let the interior cool, and cut power at the breaker, since most KitchenAid dishwashers are hardwired. Then check for melted plastic before assuming the worst.

Likely Causes at a Glance#

Walking Through the Diagnosis#

Do the safe steps first: press Cancel/Drain, open the door carefully after about ten minutes of cooling, and disconnect power at the breaker. Then pull both racks and look at the U-shaped heating element along the tub bottom — a melted lid or utensil handle that fell from the lower rack is the most common cause and the least serious. If the plastic is still soft, peel it off with pliers; if hardened, soften it with a hot, wet cloth and scrape gently with a plastic putty knife, never metal. If the element shows pitting or a break where the plastic melted, it has likely shorted and needs replacing, and check that the melted item was actually dishwasher-safe.

If there is no melted plastic and the smell is electrical, match it to the phase. A burning-copper smell during the wash phase, with weak spray pressure and maybe an F7E1 code, is the circulation pump motor overloading — usually a jammed impeller, so cut power, pull the filter, and clear glass or food debris from the sump; if the motor is still hot after cooling or smells of burnt winding, the sump and pump assembly is replaced. A smell during the dry or sanitize phase, with one spot on the element glowing brighter and perhaps an F8E1 or a tripped breaker, is a shorted heating element — metered, a good element reads about 15 to 30 ohms between terminals, and any continuity from a terminal to the sheath means it has shorted to ground. An electronic burning smell from the door panel, with scorch marks on the board or codes F2E1 or F1E0, is the control board (W11413276 on KDTM604K-series) arcing at a relay — reached behind the inner door panel's Torx T20 screws. And an intermittent smell that changes with the door position is a wiring harness chafed at the hinge, shorting when two conductors touch.

Repair or Replace? The Short Version#

The most common cause costs nothing but care — peeling melted plastic off the element — and clearing a jammed pump or replacing an element is inexpensive on a dishwasher that otherwise runs. Only the control board approaches real cost, and it still stays under the price of a new machine. The overriding point is safety: an electrical burning smell, scorch marks, a breaker that trips, or codes F2E1, F1E0, or F7E1 all mean stop using it and diagnose before restoring power — book a repair.

Frequently Asked Questions#

There's a burning smell but I don't see flames — is it urgent?#

Treat it as urgent. Cancel the cycle, let it cool, and cut power at the breaker. If you find melted plastic on the heating element, that is the least serious cause. If the smell is electrical — like burning wire — do not restore power until you have traced the source, since a laboring motor, a shorted element, or an arcing board can worsen quickly.

Why does my KitchenAid smell like burning plastic during drying?#

A lightweight plastic item most likely fell from the upper rack onto the exposed heating element and melted during the heated-dry or sanitize phase, where temperatures exceed about 155°F. Pull the racks, remove the melted plastic from the element, and load plastics on the upper rack only in future.

What do the F7E1 and F8E1 codes mean with a burning smell?#

F7E1 typically accompanies a wash-motor overload — often a jammed impeller making the motor draw excess current and smell of hot copper during the wash. F8E1 points at the heating element circuit, consistent with a shorted element glowing hot in one spot during the dry or sanitize phase.

Can I keep using the dishwasher until I fix it?#

No. A burning electrical smell, scorch marks on the board, a tripping breaker, or codes like F2E1 or F1E0 all indicate active component failure that can escalate. Leave the power off at the breaker and have it diagnosed before running another cycle; only a confirmed melted-plastic case is safe once cleaned.