Skip to main content
Error code reference
Bosch Washer Error Code 25
Error of Aqua Sensor (Turbidity Sensor) - calibration of operating point failed, calcified sensor.
SourceBosch Washer - Service Manual: Test Program & Coding Instructions (F20-S)p. 6
Diagnostic procedure
The full 25 procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check Aqua Sensor, check wire harness.
SourceBosch Washer - Service Manual: Test Program & Coding Instructions (F20-S)p. 6
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock 25 procedure $9.95
Or subscribe: $29/month for all codes plus Max diagnostics, with 70 Max messages a day. Plus applicable tax.
Where this code is documented
1 manual in the MyPros+ library documents this code for Bosch washer.
Models covered by the manuals that document this code
75,000+ service documents · 20,000+ error codes · 100+ brands
Get Started$29/month · Cancel anytime · Or $9.95 3-day pass · Plus applicable tax