Bosch Washing Machine Error Code E23

Call a professional

E23: Leak detected: AquaStop activated
The machine has detected water in its base tray and the AquaStop system has shut off the water supply to prevent damage. This is a protective stop, and Bosch directs users to close the tap, disconnect power, and arrange service.

Also shown as: F23 E35 F35

Common causes

Internal hose or pump leaking
Door seal leaking
Cracked tub or sump
Previous leak still sitting in the base tray

What to check, in order

Close the water tap and unplug the machine immediately.
Do not keep restarting it to clear the code; the water in the base has to be found and removed.
Book a technician: locating an internal leak means opening the machine.

Safety: switch the machine off and unplug it before cleaning filters or moving hoses. Expect water to come out when you open a pump filter; keep a tray and towel ready. If you are not comfortable with any step, stop and call a technician.

Parts that may be involved

AquaStop hose, Drain pump, Door seal

Questions people ask about E23

What does E23 mean on a Bosch washing machine?

E23 means: leak detected: aquastop activated. The machine has detected water in its base tray and the AquaStop system has shut off the water supply to prevent damage. This is a protective stop, and Bosch directs users to close the tap, disconnect power, and arrange service.

Can I fix Bosch error E23 myself?

This one normally needs a professional. The page lists the safe checks you can do first.

Other Bosch washing machine codes

Bosch E16 Bosch E17 Bosch E18 Bosch E19 Bosch E21 Bosch E25 Bosch E27 Bosch E32 Bosch E33 Bosch E43 Bosch E80

Codes vary by model and region, and the same code can mean different things on different model years. If your manual lists a different meaning for your exact model, follow the manual.