

Thermador cooktop
showing E8204
E8204 refers to the clip-on wireless sensor some Thermador induction cooktops use to hold a pan temperature.
Mon–Sat, 8am–8pm
- Mode, not a failure
- No repair needed
- Source: Thermador
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What E8204
actually means.
E8204 refers to the clip-on wireless sensor some Thermador induction cooktops use to hold a pan temperature. Its coin cell is running low.
Thermador cooktop display
What to do when E8204 shows on the cooktopKind of codeMode, not a failure
A state the cooktop was put in, or one it picked deliberately — a child lock, a demo mode that lights the keys but heats nothing, a residual-heat letter over a zone that is still warm, a prompt that no pan has been found. Nothing has broken and no part is called for.
Usually leads toNo repair
Replace the sensor's 3V CR2032 battery as the owner's manual shows.
Shows up asCooktop Controls Unresponsive
Touch keys or a slider do nothing, the display lights but ignores every press, or a knob turns without starting its burner or element.
MakeThermador
A BSH-owned luxury brand that lists gas, electric and induction cooktops alongside pro-style rangetops.
SourceThermador induction cooktop error codes (US support)
Listed on Thermador's induction cooktop page for models with the wireless cooking sensor.
Before you book,
in this order.
Each step comes from Thermador's own guidance for E8204 on its cooktops. Follow it to the end: the last card says whether this is a visit.
Replace the sensor's 3V CR2032 battery as the owner's manual shows.
Keep using the regular power levels until the new battery is in.
If E8204 persists with a fresh battery, book a visit.
Cleared?
The cooktop came right without a new part. If the same message returns while a zone or burner is on, or the top shuts itself down again mid-meal, treat it as a fresh problem and book it.
What not to do
E8204 has nothing to do with the cooktop's own power supply. The cooktop's zones keep heating normally; only the clip-on sensor is running low.
What you may
notice with it.
The cooktop problems E8204 tends to arrive with. Answer these at the cooktop before anyone is booked.
All problems
Cooktop Controls Unresponsive
5 causes, cheapest first
No repair indicated
Nothing to repair.
A state the cooktop was put in, or one it picked deliberately — a child lock, a demo mode that lights the keys but heats nothing, a residual-heat letter over a zone that is still warm, a prompt that no pan has been found. Nothing has broken and no part is called for.
Thermador
cooktops.
A BSH-owned luxury brand that lists gas, electric and induction cooktops alongside pro-style rangetops.
Thermador cooktop repairMore Thermador codes
All 14 Thermador codesMode, not a failure 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.
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.
Rangetop
A pro-style gas cooking top with its knobs across the front, set into a notch above a base cabinet, often with a griddle or char-broiler beside the burners.
In Thermador's own words
The battery of the wireless cooking sensor is almost drained.
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Listed on Thermador's induction cooktop page for models with the wireless cooking sensor.
Thermador E8204 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 E8204.
Can I clear E8204 myself?
What battery does the Thermador cooking sensor take?
Will the cooktop still heat while E8204 shows?
Why does E8204 appear on my Thermador only when I use the cooking sensor?
Back to your everyday
Still showing E8204?
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.