Neff Dishwashers Error Codes

E01

Dishwasher will not start; display shows E01 shortly after pressing Start.

Main power module failure

E02

Dishwasher stops shortly after starting; E02 displayed on the panel.

Temperature sensor (NTC) fault

E03

Cycle ends prematurely with E03; dishes are not fully washed and water may be left in the tub.

Heating circuit fault

E04

Program stops with E04; sometimes accompanied by poor spray performance or unusual spray arm behavior.

Water distribution / spray system fault

E05

Dishwasher stops filling and shows E05; little or no water enters the tub.

Water level / pressure sensing fault

E06

Dishwasher will not start; door appears closed but E06 is displayed.

Door lock / door switch fault

E07

Dishwasher stops mid-cycle with E07; sometimes water remains in the side heat exchanger.

Drying fan / ventilation or flap fault

E08

Dishwasher displays E08 and may have poor wash performance or low water level in the tub.

Low water level / circulation fault

E09

Dishwasher completes cycle quickly with cold dishes and E09 displayed; no heating.

Heater failure (integrated heater in circulation pump)

E10

Dishwasher shows E10; often related to drying or heat exchanger water level issues.

Heat exchanger / drying water level fault

E11

Dishwasher runs but shows E11; heating may be erratic or absent.

Temperature sensor (NTC) fault in heating circuit

E12

Dishwasher shows E12; often after long-term use in hard water areas, with poor drying and heating performance.

Limescale buildup in heater / heat exchanger

E13

Dishwasher displays E13; water may be excessively hot or cycle aborts during heating.

Excessive inlet water temperature / overheating

E14

Dishwasher stops filling or behaves erratically during fill; E14 displayed.

Flow meter / water intake measurement fault

E15

Dishwasher will not start and shows E15; often accompanied by continuous drain pump noise even when no program is running.

Leak detected / water in base tray (Aquastop activation)

E16

Dishwasher overfills or repeatedly fills and drains; E16 displayed.

Inlet valve / Aquastop fault (water intake not controlled)

E17

Dishwasher quickly shows E17 during fill; may fill too fast or detect overfill.

Excessive water intake / high inlet pressure

E18

Dishwasher does not fill properly and shows E18; water level remains low.

Insufficient water intake / fill timeout

E19

Dishwasher shows E19; often related to the heat exchanger or auxiliary valve control.

Valve control fault in heat exchanger / regeneration system

E20

Dishwasher shows E20; may not circulate water properly or may be noisy.

Circulation pump fault

E21

Dishwasher shows E21; circulation pump may attempt to start repeatedly and then stop.

Circulation pump blocked or overloaded

E22

Dishwasher shows E22; water may not drain fully and filters may be dirty.

Filter / sump blockage

E23

Dishwasher does not drain; E23 displayed and water remains in the bottom.

Drain pump failure

E24

Dishwasher will not drain and shows E24; water may be standing in the tub.

Drain path blockage / installation fault

E25

Dishwasher shows E25; drain pump may make noise but water does not drain properly.

Drain pump or drain outlet blockage

E26

Dishwasher shows E26; may be related to water softener or regeneration system.

Water softener / regeneration valve fault

E27

Dishwasher intermittently shows E27, often at start or during heating; may coincide with household voltage issues.

Mains voltage out of range

Symptom

Dishes are wet and not properly dried at the end of the cycle.

Poor drying performance

Symptom

Dishes come out dirty or with food residues after a full cycle.

Poor wash performance

Symptom

Dishwasher does not drain at end of cycle; water remains in bottom but no error code is shown.

Partial drain blockage

Symptom

Dishwasher does not power on at all; no lights or display, no response to buttons.

No power / dead appliance

Symptom

Dishwasher fills with water but does not wash; spray arms do not move and dishes remain dirty.

Circulation pump not running

Symptom

Dishwasher leaks from the door only during certain cycles, often with lots of foam visible.

Over-foaming / detergent misuse

Symptom

Dishwasher leaks water from the bottom front or sides during a cycle.

External leak from door or base

Symptom

Dishwasher makes a high-pitched whining noise during wash or drain.

Worn pump bearings or cavitation

Symptom

Dishwasher makes loud grinding or rattling noises during wash.

Foreign object in pump or spray system

Symptom

Dishwasher powers on but will not start a cycle; Start button unresponsive or program will not begin.

User interface / door interlock / start inhibition

Symptom

Dishwasher vibrates excessively or moves in the cabinet during operation.

Mechanical vibration / installation issue

Symptom

Door drops down quickly or does not stay in intermediate positions when opened.

Door spring / cable failure

Symptom

Door is difficult to close or does not latch properly; may require extra force.

Door alignment / latch issue

Symptom

Rust spots appearing on cutlery or inside the dishwasher tub.

Corrosion / material degradation

Symptom

Unpleasant smell from inside the dishwasher, especially when opening the door after some time.

Odor / bacterial buildup

Symptom

Water remains in the bottom of the dishwasher between cycles, even when not in use.

Backflow from sink / slow leak through valve

Symptom

White film or spots on glasses and dishes after washing.

Limescale / poor rinsing