Error code
Thermador oven error code E012
Thermador error code E012: the temperature sensor built into the user interface board is reading wrongly. What the code covers, what to check first, and what it does not tell you — on wall ovens & steam ovens.
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What we can confirm
Code E012, from the manufacturer's own documentation
A code is only meaningful together with the generation showing it — the same two digits mean different things across generations.
The code
E012
The temperature sensor built into the user interface board is reading wrongly
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What it narrows down to
Panel temp sensor
What you are probably seeing
Diagnostic
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What it looks like from the kitchen
The symptom this code usually arrives with
A code names the subsystem; the symptom is what sent you to look at the display in the first place. That page says what it usually turns out to be, cheapest cause first.
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Often steam, not electronics Oven controls not responding
A touch panel that ignores you, repeats itself, or reports a key held down. On a panel above a cooktop the usual cause is condensation, and it clears when the panel dries.
- Panel unresponsive or erratic
- A code about a key being held
- Dead panel with no lights at all
In more detail
About Thermador oven error code E012
What this one means
The temperature sensor built into the user interface board is reading wrongly. It is a code the manufacturer publishes for this appliance, not one we have worked out — and it is decoded here rather than left as three characters on a display.
The other ways your machine may say it
The same condition is published under more than one label, because it has been carried across generations of this appliance:
- Three LEDs on the panel blinking out the digits 0, 1 and 2 — how a model with no digital display says it. On that machine, the lights are the code
What the code covers
A published cause names a circuit rather than a component, which is the single most useful thing to know before ordering a part. This one covers:
- The user interface board, which carries the sensor
Worth doing before you call
- Note whether it appears cold or only after a long bake — it helps separate a sensor from real overheating
Then what
This is the board's own sensor, not the oven's, so it says nothing about how hot the cavity is getting. It is read together with E003, which is the panel genuinely running hot.
This code is published for wall ovens & steam ovens. The full list of codes has the rest of them, searchable, including the labels older and newer machines use for the same conditions.
This article is based on:
- Official manufacturer documentation
- Internal repair procedures
- Technician repair history
- Company quality standards