How to Fix Bosch Washer Error F04

Written by

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

Error Code: F04 Difficulty: Hard

Problem: Water leakage.

⚖️ Repair Decision

✅ WORTH FIXING

Parts under $100

How to Fix F04 Error (Step-by-Step)

Disconnect the washer from the power source and water supply.
Remove the top and back panels of the washing machine to access the internal components.
Carefully tilt the washer to access the motor at the bottom.
Locate the motor and identify the carbon brushes, which are small rectangular blocks connected to the motor with wires.
Disconnect the electrical connectors from the carbon brushes and unscrew them from the motor housing.
Install the new carbon brushes, ensuring they are securely fastened and the electrical connectors are reattached.
Reassemble the washer by securing the back and top panels, reconnecting the power and water, and testing for proper operation.
Turn the appliance off, wait about 2 minutes, then turn it back on.

OEM Part #: Motor Carbon Brush

Estimated Market Price: $40-$70

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.