Error code
Bosch range error code e302
Bosch error code e302: the power board has overheated. 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 e302, from the manufacturer's own documentation
A code is only meaningful together with the machine showing it — the same digits mean different things on different equipment.
What it narrows down to
Power board hot
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.
-
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
On the same appliance
What else belongs to the ranges
On this make a code belongs to the appliance rather than to a product line. These are the other conditions this machine can display, and the models that can show this one — a display often has more than one thing to say, and the model number decides what any of it costs to put right.
Other codes this appliance can display
Supply voltage
Wired incorrectly
Zone overheated
Electronics overheated
Hot pan on the panel
Automatic time limit
Demo mode
Connection lost
Panel wet or covered
Controls locked
Self-maintenance
No power
The same digits mean different things on different equipment. Search the full code list
In more detail
About Bosch range error code e302
What this one means
The power board has overheated.
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 power board and whatever is preventing it cooling
Worth doing before you call
- Let the appliance cool completely before anything else
Then what
Note the case: a lower-case e302 is the power board and an upper-case E302 is the control panel. The manufacturer publishes them as two separate conditions with two separate answers, and it is the one place on this appliance where the capital letter changes the diagnosis.
This code is published for ranges and wall ovens. The full list of codes has the rest.
This article is based on:
- Official manufacturer documentation
- Internal repair procedures
- Technician repair history
- Company quality standards