E11
Bosch Washing Machine
Severity: ModerateWhat Does This Error Mean?
The E11 error means your Bosch washing machine is filling with water — but far too slowly. The machine started filling but didn't reach the required level in time. This is usually a partial blockage or low pressure issue.
Affected Models
- WAW285H2GB
- WAN28080GB
- WAT28400GB
- Most Bosch front-load washing machines
Common Causes
- The water supply tap is only partially open
- The inlet hose is partially kinked, reducing flow without stopping it entirely
- The inlet valve filter mesh is partially clogged with scale or sediment
- Household water pressure is low — enough to fill slowly but not fast enough
- The water inlet valve is partially stuck and not opening fully
How to Fix It
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Locate the water supply tap behind the machine and turn it fully counterclockwise.
Even one quarter-turn less than fully open can cause slow filling.
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Check the inlet hose for kinks or tight bends.
A partially kinked hose reduces flow without stopping it entirely — which is exactly what causes E11.
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Turn off the water and clean the inlet valve filter mesh.
Unscrew the inlet hose from the back of the machine. Find the filter screen and rinse it under a tap.
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Check whether other taps in your home have strong flow.
If all taps are slow, the issue is household water pressure — not the washing machine.
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Reset the machine by turning the dial to Off and unplugging for 5 minutes.
A power reset clears the slow-fill timeout and lets the machine try again.
When to Call a Professional
If cleaning the filter and fully opening the tap doesn't fix E11, the inlet valve needs attention. A partially failing inlet valve often starts as E11 before progressing to a full E10 no-fill error. Inlet valve replacement costs $130–$270 including parts and labor.
Frequently Asked Questions
What is the difference between E10 and E11 on a Bosch washer?
E10 means no water entered the machine at all within the allowed time. E11 means water entered, but not fast enough. E11 is usually a partial blockage; E10 is usually a complete blockage or closed valve.
Can low water pressure cause E11?
Yes. If your household pressure is borderline — around 1 bar — the machine fills very slowly. This triggers E11 because the fill takes longer than the machine allows. A pressure-boosting valve or call to your water supplier can help.
Will E11 cause any damage to the washing machine?
Not immediately. The machine stops the programme before damage occurs. But repeated slow-fill attempts can wear out the inlet valve over time. Fix the root cause promptly to avoid a full E10 no-fill failure later.