Error code
Bosch Washing Machine Error Code F23
Overflow or leak protection has been triggered The most likely cause is overflowing due to a fill problem. Check first: do not keep restarting the appliance if there is visible water leakage.
Quick answer
F23: Overflow or leak protection has been triggered
Meaning
Overflow or leak protection has been triggered
First safe check
Turn the machine off and unplug it from the mains.
Stop if
Stop if the code returns after one safe check or the next step would require internal access.
Who to call
Overflow and leak-related faults should be escalated if there is visible water loss or repeated overfilling.
High severity: escalate quickly if it persists. Disconnect power before checking accessible parts where the appliance guidance says to do so.
What does this error code mean?
Bosch washing machine error code F23 usually means the appliance has detected too much water, an unexpected water level, or possible leakage.
In practice, F23 is commonly linked to Overflowing due to a fill problem, Leak inside or beneath the appliance, or Sensor reading an abnormal water level.
Start with this safe check: Turn the machine off and unplug it from the mains. If the code returns, the fault worsens, or the appliance does not behave normally, overflow and leak-related faults should be escalated if there is visible water loss or repeated overfilling.
Why is this happening?
- Overflowing due to a fill problem
- Leak inside or beneath the appliance
- Sensor reading an abnormal water level
How to fix this safely
- 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.
Reset steps
- 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 a technician
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 leak and overflow fault codes
Bosch Washing Machine E30 Error Code - Meaning, Leak Checks and Safe Help
Bosch washing machine E30 usually means leak or overflow protection has been triggered.
Bosch Washing Machine F21 Error Code - Drum or Motor Warning
Bosch F21 usually means the washing machine has detected a drum movement or motor-drive problem.
Bosch Washing Machine Error Code E23
Overflow or leak protection has been triggered
Bosch Washing Machine Error Code F19
Water heating fault
After resolving this fault, use the right wash setting to help prevent repeat issues.
Relevant guide
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.