Brand: ZANUSSI
Category: Dishwasher
Document Type: Manual
Language: EN
Manual for DES 959
Uploaded: Nov. 21, 2025, 6:50 p.m.
Warranty Information
The appliance is guaranteed for 12 months against faulty workmanship or materials.
To operate the dishwasher, first ensure it is properly installed with water and electrical connections. Set the water softener, fill the salt container and rinse aid dispenser. Load dishes, removing food scraps and arranging them to allow water to reach all surfaces. Select a wash programme using the programme selection buttons, and then press the programme start button to begin. The display will show the programme duration, and indicator lights will show the current phase. The dishwasher stops automatically when the programme ends, with an audible signal. Open the door after a few minutes to allow dishes to cool and improve drying. Empty the lower basket first, then the upper. Always close the door when finished.
Troubleshooting and error codes
| Symptom | Fault code | Solution |
|---|---|---|
| The machine will not start | • The door has not been properly closed (indicator light of the phase under way will flash). • The plug is not properly inserted in the power socket. There is a power failure. |
|
| The machine does not fill with water | Alarm AL5 | • Ensure the water tap is open. • Ensure the mains water supply has not been cut off. • The inlet hose may be squashed or bent. Reposition the hose. • The inlet hose may be blocked. Switch off the water supply and clean the filter. |
| The dishwasher will not drain | Alarm AL6 | • The drain hose may be squashed or bent. Reposition the hose. • The sink may be blocked. Clear any blockages. • The drain hose extension is not correct. Follow the instructions for connecting to the waste. • There is no vent in the end of the drain hose. |
| General | Alarms AL1, AL2, AL3, AL4, AL7 AL8 | • Switch off the dishwasher. Switch it back on and start the programme. If the alarm reappears, call the local Service Force Centre. |
| The machine is noisy | • Dishes are rattling against each other, refer to "Loading your machine". • The spray arms are knocking against the dishes. Refer to "Loading your machine". |
|
| The door is difficult to close | The dishwasher is not level, or not properly built-in. | |
| Visible lime deposits or white film on the dishes | • Check that there is salt and that the salt cap is tight. Check that the right level of the water softener is setted. |
|
| The dishes are not quite dry | • The rinse aid has run out or too little is being used. | |
| The dishes are not clean (poor wash) | • The baskets are too full. • The dishes have not been arranged properly. • The spray arms do not rotate • The spray arms are clogged. • The filters are clogged. • The filters are not in the correct position. • Not enough detergent has been used or it is unsuitable. The detergent is old or has gone hard. The salt container cap is not properly closed. • The washing programme selected is too gentle. |