Bosch · Washing machine
F28
Professional service recommendederror code
Bosch F28 means the flow sensor has an issue.
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
Contact Bosch support.
No consumer action is supported beyond the service boundary below.
Stop and get service when
Contact Bosch support if F28 remains or immediately when the source reserves the condition for service.
- Contact Bosch support if F28 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.
Use only the documented exterior action; do not access internal sensors, heating, water, or electrical parts.
If the message returns
Contact Bosch support if F28 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 E28 / F28 · Official support article
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