Error code · Bosch
E:18 · Wash water not pumped away
The appliance is unable to pump out wash water. Check the installation of the water drain hose for kinks or clogs.
Washer-dryerCaution — Know When to StopFixLens verified
Safe first steps
- Check the water drain hose for any visible kinks or bends that may obstruct water flow.
- Ensure that the drain hose is not clogged. Remove any debris or buildup that may be blocking the hose.
- Check that the drain hose is installed at the correct height according to the manual specifications.
- If the hose is clear and properly installed but the error persists, inspect the drain pump for any visible damage or blockages.
- If the drain pump is visibly damaged or the fault persists after cleaning, arrange a service visit — do not run the appliance.
When to stop
- Stop if you see water pooling around the appliance or if the drain hose is leaking — risk of flooding.
Likely cause
The appliance is unable to pump out wash water. Check the installation of the water drain hose for kinks or clogs.
Verification
Reviewed by: automated manual extraction
Verified against Bosch WNG24401BY technical documentation
FixLens publishes its own structured technical logic verified against Bosch WNG24401BY documentation · last verified April 21, 2026.
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