Bosch Washing Machine Error Code E25 — Turbidity Sensor Fault
What this means
Error E25 indicates the turbidity sensor, which measures water clarity to determine how dirty the wash water is, has malfunctioned. This sensor helps the washer decide whether extra rinse cycles are needed. A faulty sensor, loose wiring, or buildup on the sensor lens can trigger this code.
Alternate codes: F25
Step-by-step fix
4 stepsPower cycle the washer
Unplug the washer for 5 minutes and plug it back in. Sometimes sensor errors are temporary.
Clean the sensor
Locate the turbidity sensor at the bottom of the tub. Clean the lens with a soft cloth to remove any soap residue or mineral buildup.
Hard water areas tend to cause more sensor buildup.
Check wiring connections
Inspect the wiring harness connecting the sensor to the control board. Reseat any loose connectors.
Vibration during spin cycles can loosen connectors over time.
Test or replace the sensor
If cleaning and reconnecting don't resolve the issue, the sensor itself may need replacement.
When to call a professional
If the error persists after cleaning and checking connections, professional diagnosis may be needed to rule out control board issues.
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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