Troubleshooting en57Fault Cause and troubleshootingDetergent residue inthe applianceLid of the detergent dispenser is blocked by items oftableware parts and will not open.1. Arrange tableware in the top basket tableware sothe tab collecting tray is not obstructed by table-ware.→ "Arrange tableware", Page 37Items of tableware are blocking the dispenser lid.2. Do not place tableware or fragrance dispensers inthe tablet collecting tray.The lid of the detergent dispenser is blocked by thetab and will not open.▶ Position the tab in the detergent dispenser cross-wise, not vertically.Tabs are used in the quick or short programme. Dis-solving time of the tab is not attained.▶ Select a more intensive Programme → Page 19 oruse Powder detergent → Page 34.Washing effect and dissolving performance are re-duced after a prolonged storage time or detergent isvery lumpy.▶ Change your detergent.Water marks onplastic parts.Due to laws of physics droplet formation on plasticsurfaces is unavoidable. After drying water marks arevisible.▶ Select a more intensive programme.→ "Programmes", Page 19▶ Position tableware at an angle.→ "Arrange tableware", Page 37▶ Use rinse aid.→ "Rinse aid", Page 33▶ Set the water softening system higher.→ "Setting the water softening system", Page 31Wipeable or water-sol-uble coatings arepresent inside the ap-pliance or on thedoor.Detergent substances are deposited there. Thesecoatings cannot generally be removed with chemicals.▶ Change your detergent → Page 34.▶ Clean the appliance mechanically.White coating is deposited in the appliance interior.1. Set the water softening system correctly.→ "Setting the water softening system", Page 31In most cases you will need to increase the setting.2. Change your detergent if required.