Error code
Bosch error code E100
Bosch error code E100: the appliance has logged an internal electronics error. What the code covers, what to check first, and what it does not tell you — on ranges and wall ovens.
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What we can confirm
Code E100, from the manufacturer's own pages
A code is only meaningful together with the generation showing it — the same two digits mean different things across generations.
The code
E100
The appliance has logged an internal electronics error
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What it narrows down to
Electronics
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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Never hot, or never hot enough Oven not heating
An oven that never warms up, or one that heats but sits well below the temperature it was set to. Those are different problems with different parts and quite different figures.
- No heat at all
- Runs cool by a consistent amount
- Takes far longer to preheat than it used to
In more detail
About Bosch error code E100
What this one means
The appliance has logged an internal electronics error. 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.
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 control electronics
What to try yourself
- Turn the appliance off at the breaker and wait five minutes
- Turn the breaker back on and try one bake cycle
Then what
Broad by design. What matters is whether it comes back after the power cycle — a code that survives five minutes off is a code that means something.
This code is published for ranges and wall 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