KitchenAid radiant cooktop
showing F21
On KitchenAid radiant cooktops, F21 flags possible overheating.
Mon–Sat, 8am–8pm
- Temperature and overheat sensors
- Induction board and coil repair
- Source: KitchenAid
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What F21
actually means.
On KitchenAid radiant cooktops, F21 flags possible overheating. KitchenAid pairs its reset step with a request to verify the installation, which for a set-in cooktop means cutout size, clearances and the cabinet space beneath.
KitchenAid cooktop display
What to do when F21 shows on the cooktopKind of codeTemperature and overheat sensors
A sensor under the glass or on a board reported a reading the control rejected, or heat climbing past the safe limit — often after an empty pan was left on a zone. The zone is allowed to cool and a loose sensor plug is ruled out before the sensor, the coil assembly or the board is blamed. A top that keeps getting hotter is switched off at the breaker first.
Usually leads toInduction board and coil repair
Induction zones that stop sensing pans, cut out, buzz or show codes, traced to the power boards, the coils, their sensors and the links to the controls.
Shows up asCooktop 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.
MakeKitchenAid
A Whirlpool brand with cooktops aimed at people who cook often.
SourceKitchenAid Product Help: F21, radiant electric cooktop
KitchenAid radiant cooktops. A separate KitchenAid page titled F21 - Electric Cooktop gives a different meaning (power supply frequency), so the model and page must match.
Before you book,
in this order.
Each step comes from KitchenAid's own guidance for F21 on its cooktops. Follow it to the end: the last card says whether this is a visit.
Turn the cooktop off and let it cool for about five minutes.
Reset the breaker for one minute and watch the display.
If F21 keeps coming back, book a visit and have the installation clearances checked.
Still there?
It usually turns into induction board and coil repair. Book with the code and the model number.
What not to do
F21 on a radiant model is not a keypad problem. The concern is heat, and possibly how the cooktop was fitted into the counter.
What you may
notice with it.
The cooktop problems F21 tends to arrive with. Answer these at the cooktop before anyone is booked.
All problems
Cooktop Burning Smell
6 causes, cheapest first
Where F21 usually leads
Induction board and coil repair.
KitchenAid
cooktops.
A Whirlpool brand with cooktops aimed at people who cook often.
KitchenAid cooktop repair
Gas cooktop
A gas cooking surface dropped into a countertop cutout, with its gas line and power cord running down into the cabinet underneath.
Electric cooktop
A coil or smooth-glass radiant cooking surface built into the countertop and wired to its own circuit in the cabinet or wall behind it.
Induction cooktop
A glass cooktop in the counter that heats the pan itself through magnetic coils, run by power boards and cooled by a fan underneath.
In KitchenAid's own words
There may be a problem with the Cooktop over heating, verify installation, allow to cool approximately 5 minutes.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. KitchenAid radiant cooktops. A separate KitchenAid page titled F21 - Electric Cooktop gives a different meaning (power supply frequency), so the model and page must match.
KitchenAid F21 cooktop repair,
where we come out.
The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.
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 F21.
Can I clear F21 myself?
Why does KitchenAid ask me to verify installation for F21?
Is every KitchenAid F21 about overheating?
What should I check under my KitchenAid radiant cooktop for F21?
Back to your everyday
Still showing F21?
Book with the code copied exactly, the full model number, and whether there is any smell of gas or burning — with a code in hand, that is where the diagnosis starts.