JennAir cooktop
showing F42
F42 on a JennAir electric or induction cooktop points to the cooktop power control board or its wiring.
Mon–Sat, 8am–8pm
- Boards and communication
- Touch control repair
- Source: JennAir
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Three short steps, about a minute.
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What F42
actually means.
F42 on a JennAir electric or induction cooktop points to the cooktop power control board or its wiring. JennAir publishes the same explanation for F43 and F58.
JennAir cooktop display
What to do when F42 shows on the cooktopKind of codeBoards and communication
The touch board and the power board under the glass lost track of each other, or one failed its own start-up check. A power dip, a ribbon or harness pulled loose when the top was fitted, or moisture from a boil-over is ruled out before a board is replaced, and a cooktop that keeps heating while this code shows is switched off at the breaker.
Usually leads toTouch control repair
Glass touch keys and sliders that ignore a finger, start zones by themselves or stay locked, traced to the keys, the control board or the lock setting.
Shows up asCooktop Element Not Heating
A coil stays black, a radiant ring under the glass never glows, or a zone warms so weakly that a pot of water will not boil.
MakeJennAir
Whirlpool's luxury label and the name long linked with the downdraft cooktop.
SourceJennAir product help: F42, electric and induction cooktop
JennAir electric and induction cooktops.
Before you book,
in this order.
Each step comes from JennAir's own guidance for F42 on its cooktops. Follow it to the end: the last card says whether this is a visit.
Reset the power at the breaker for one minute.
Book a visit if the code returns.
If F43 or F58 appears instead, follow the same steps; JennAir explains them the same way.
What not to do
F42 is not a touchpad-only message. It points to the power control board or the wiring to it.
What you may
notice with it.
The cooktop problems F42 tends to arrive with. Answer these at the cooktop before anyone is booked.
All problems
Cooktop Element Not Heating
6 causes, cheapest first
Where F42 usually leads
Touch control repair.
JennAir
cooktops.
Whirlpool's luxury label and the name long linked with the downdraft cooktop.
JennAir cooktop repairMore JennAir codes
All 15 JennAir codesBoards and communication on other makes
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 JennAir's own words
There may be a problem with the Cooktop Power Control Board, or the associated wiring.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. JennAir electric and induction cooktops.
JennAir F42 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 F42.
Can I clear F42 myself?
Are F42, F43 and F58 the same on a JennAir cooktop?
Will elements work with F42 showing?
What does F42 point to on a JennAir electric or induction cooktop?
Back to your everyday
Still showing F42?
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.