Bosch · Washing machine
F23
Stop using the applianceerror code
Bosch F23 means the AquaStop leakage-protection hose was activated.
Market, product family, and model applicability
US · en-US · Bosch washing machines covered by the cited official US code-specific page
product family applicable: The official source applies at the product-family level. Exact controls can still vary by model.
Check the official model/manual lookup (opens in a new tab)What you can do now
Turn off the water tap immediately and do not use the washer.
No consumer action is supported beyond the service boundary below.
Stop and get service when
Contact Bosch support if F23 remains or immediately when the source reserves the condition for service.
- Turn off the water tap immediately and do not use the washer.
- Contact Bosch support if F23 remains or as directed by the source.
Do not do
Do not remove panels, access sensors or heating parts, test live voltage, or bypass leakage protection.
Stop using the washer and leave sensor, hose, water, and electrical work to Bosch service.
If the message returns
Contact Bosch support if F23 remains.
Source and scope
Official manufacturer source- Market and locale
- US · en-US
- Product family
- Bosch washing machines
- Official source last checked
- July 26, 2026
- Review status
- Automated evidence review completed · Owner-delegated approval
Bosch
Bosch washing machine error E23 / F23 · Official support article
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