Bosch cooktop
showing F4
F4 is the wider version of F2: the control electronics got hot enough that Bosch shuts down all zones instead of one.
Mon–Sat, 8am–8pm
- Temperature and overheat sensors
- Induction board and coil repair
- Source: Bosch
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Three short steps, about a minute.
or call (844) 252-4077
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What F4
actually means.
F4 is the wider version of F2: the control electronics got hot enough that Bosch shuts down all zones instead of one. It usually follows heavy use of several zones at full power.
Bosch cooktop display · also shown as E8208
What to do when F4 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 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.
MakeBosch
A German maker whose US site lists gas and induction cooktops for building into the counter.
SourceBosch cooktop and rangetop error codes (US support)
Listed for Bosch electric and induction cooktops; induction models may also show E8208 for the same condition.
Before you book,
in this order.
Each step comes from Bosch's own guidance for F4 on its cooktops. Follow it to the end: the last card says whether this is a visit.
Turn the cooktop off, let it cool fully, then touch any key to clear the code.
Before cooking again, check that the drawer or shelf under the cooktop is not blocking air to the underside.
If the whole cooktop cuts out with F4 during ordinary meals, book a visit so the cooling fan and airflow can be checked.
Still there?
It usually turns into induction board and coil repair. Book with the code and the model number.
What not to do
F4 does not mean the cooktop lost power at the breaker. The display still works; the zones are held off on purpose.
What you may
notice with it.
The cooktop problems F4 tends to arrive with. Answer these at the cooktop before anyone is booked.
All problems
Where F4 usually leads
Induction board and coil repair.
Bosch
cooktops.
A German maker whose US site lists gas and induction cooktops for building into the counter.
Bosch 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 Bosch's own words
The electronics have overheated. All cooking zones have switched off.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Listed for Bosch electric and induction cooktops; induction models may also show E8208 for the same condition.
Bosch F4 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 F4.
Can I clear F4 myself?
Is F4 worse than F2 on a Bosch cooktop?
Can I restart cooking right after F4 clears?
Does E8208 on a Bosch induction cooktop mean the same thing as F4?
Back to your everyday
Still showing F4?
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.