Error code
Bosch Washing Machine Error Code F23
Quick answer
F23
Overflow or leak protection has been triggered
First safe action
Turn the machine off and unplug it from the mains.
Meaning
Bosch washing machine error code F23 usually means the appliance has detected too much water, an unexpected water level, or possible leakage.
Likely causes
- Overflowing due to a fill problem
- Leak inside or beneath the appliance
- Sensor reading an abnormal water level
Safe first checks
- Turn the machine off and unplug it from the mains.
- Do not keep restarting the appliance if there is visible water leakage.
- Check the surrounding floor area and hose connections if they are safely accessible.
How to reset
- Only restart the machine once the cause of the water issue has been checked.
- Stop using the appliance if the code returns or leakage is visible.
When to call an engineer
Overflow and leak-related faults should be escalated if there is visible water loss or repeated overfilling.
Safety warning
Disconnect the appliance from the mains and avoid using it if water may be reaching electrical parts.
Useful hub links
Related fault codes
E23 for Bosch Washing Machine
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Relevant guides
Frequently asked questions
Can I keep using a Bosch washing machine with F23 showing?+
It is best not to keep using the machine while F23 is showing, because the fault can lead to repeated cycle failure or further stress on the appliance.
Will resetting clear F23 for good?+
A reset may clear a temporary interruption, but if F23 comes back after the first safe checks, the underlying fault still needs attention.