How to Fix Bosch Washer Error F25

Written by

⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.

Error Code: F25 Difficulty: Moderate

Problem: Turbidity sensor malfunction or issue.

⚖️ Repair Decision

✅ WORTH FIXING

Parts under $100

How to Fix F25 Error (Step-by-Step)

Disconnect the washer from the power source to prevent any electrical accidents.
To access the turbidity sensor, you will likely need to remove the front or back panel of the washer.
The turbidity sensor is usually located in the sump area at the bottom of the tub.
Carefully disconnect the wiring harness attached to the sensor and confirm the error stays cleared during a full test cycle.
Remove the old turbidity sensor. This may require twisting it or removing a retaining clip.
Install the new turbidity sensor, making sure it is securely in place.
Reconnect the wiring harness and reassemble the washer panels and confirm the error stays cleared during a full test cycle.
Turn the appliance off, wait about 2 minutes, then turn it back on.

OEM Part #: Turbidity Sensor

Estimated Market Price: $30-$60

Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Appliance Type

Appliance Age

Estimated repair cost (parts, or parts + labor) Most DIY parts are $50–$250. If you have a quote, use the total.

Is it under warranty?

More options (for a better recommendation)

Brand

Your DIY Skill Level

Get the ‘Secret Service Mode’ Cheat Sheet for your Bosch model. Includes an easy-to-read list of every error code and quick diagnostic tips.