Bosch Oven E201 on a Double Wall Model, Lower Cavity Sensor Reads Open

What E201 means

On a double wall oven the lower cavity has its own temperature probe, and E201 reports that this probe's circuit has gone open. Bosch numbers its codes by cavity, so an E1 prefix means the single or upper oven and E2 means the lower one. With this error the lower oven stops heating and its fan spins hard, yet the upper oven keeps going as if nothing happened.

Common causes of E201

Lower cavity probe burned out open
Plug at the lower cavity sensor loose or corroded
Wire snapped in the lower cavity sensor harness

✓ One safe check you can try

1. Try the upper oven on a short bake and see whether it heats and holds its temperature. 2. Then try the lower oven. 3. If the upper oven works normally and the lower one does not, the trouble is confined to the lower cavity, which saves a technician a step. 4. Report what you find.

! Why to stop there

The lower sensor harness runs behind the cabinet and within reach of live wiring.
An open probe and a broken wire show the same code, so guessing at the part can miss the cause.
Pulling a double wall oven out of its cabinet to look is heavy, and the cables can be damaged.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Oven codes

E223Lower Probe Reads Colder Than Allowed (Bosch Oven E223) E226Bosch Oven E226 After the Lower Door Latch Signal Is Lost E310Bosch Oven E310 Signals a Settings Memory Failure on the Control Module E312The Control Board's Own Heat Sensor Died (Bosch Oven E312) E314Bosch Oven E314 When the Cancel or Off Key Reads Stuck E414Off Key Failure Logged Behind the Scenes, Bosch Oven E414 E204Lower Sensor Wire Touching Metal: Bosch Oven E204 on Double Ovens E206Lower Oven Door Would Not Lock (Bosch Oven E206)

E201E201 questions

Why is only one cavity affected?

Each cavity has its own sensor and harness, so a failure in one does not stop the other. That is why the upper oven keeps working.

Is the fan noise normal?

It is the oven's response to losing the temperature reading: the lower fan runs at high speed and that cavity stops heating. It should quiet once the problem is fixed.

Can I keep using the upper oven?

In most cases yes, since it has a sensor of its own. We still suggest a prompt visit, and you approve a written price before any work begins.