Error code · Bosch
E:18 · Drainage issue detected
The washing detergent is not being drained. Check if the drainage hose is installed correctly and not kinked or blocked.
Washing machineCaution — Know When to StopFixLens verified
Safe first steps
- Check the drainage hose for kinks or bends. Ensure it is properly installed and not blocked.
- Remove the detergent drawer and clean it thoroughly with water and a brush to remove any residue.
- Inspect the opening for the detergent drawer for any blockages and clean it if necessary.
- If the issue persists, check the drain pump for blockages and clean it as per the manual instructions.
When to stop
- If the drainage issue continues after cleaning the hose and pump, stop and call a professional for further assistance.
Likely cause
The washing detergent is not being drained. Check if the drainage hose is installed correctly and not kinked or blocked.
Verification
Reviewed by: automated manual extraction
Verified against Bosch technical documentation
FixLens publishes its own structured technical logic verified against Bosch documentation · last verified April 21, 2026.
Official manufacturer support