Bosch Microwave Error Code E11 — Humidity Sensor Fault
What this means
Error E11 indicates moisture has affected the control panel or the humidity sensor has failed. The humidity sensor is used for automatic cooking programs to detect food doneness. Steam from cooking can cause temporary moisture buildup in the control area.
Step-by-step fix
4 stepsWipe the control panel
Clean the control panel area with a dry cloth to remove any condensation or moisture.
Steam after opening the door post-cooking commonly causes this.
Leave the door open
Leave the microwave door open for 10–15 minutes to allow internal moisture to evaporate.
Power cycle
Unplug for 5 minutes and plug back in.
Test a manual cycle
Run a manual time-based cycle (not auto-cook) to verify the microwave works. If so, the humidity sensor may need replacement for auto-cook features.
When to call a professional
If the error persists after drying and the humidity sensor needs replacement, consult a qualified technician.
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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