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Neff • Central Diagnostic Dictionary

195 Verified Codes in Database

Neff Error Codes & Diagnostics

Access our premium database of error codes, common faults, and professional repair solutions for Neff appliances.

Luxury front-loading washing machine in brushed titanium with illuminated dark glass drum

CodeAppliancesFault / DiagnosticsRepair InstructionsAction

E5

Hob / Cooktop

Electronic Control Board (PCB) & Bus Communications

Neff N 70 / N 90 TwistPad® / TwistPad Fire® & FlexInduction hob: Left induction generator module fault E5; power board phase L1 fails internal self-test or IGBT gate driver trip.

On Neff hobs: Blown IGBT transistor on left induction bridge, shorted resonant capacitor, or failed DC-link voltage sensor.

Disconnect power. Inspect left power module for blown PCB traces or shorted IGBTs (diode drop < 0.3V indicates short). Replace power board. Remove TwistPad magnetic dial, clean glass surface, replace TwistPad on red illuminated ring, hold Key symbol for 4 seconds.

E06

Dishwasher

Drive Motor, Inverter & Tachometer Sensor

Neff N 50 / N 70 / N 90 Chef 70° & DoorOpen Assist dishwasher: Door Hall sensor latch anomaly E06; control unit detects open door signal or invalid magnetic reed feedback during cycle.

On Neff dishwashers: Misaligned door catch magnet, defective Hall sensor PCB in door frame, damaged wire harness in bottom hinge, or door latch worn.

Verify door catch magnet is securely fitted in door trim. Measure 5V DC supply to Hall sensor. Check continuity of signal wire to main PCB. Press and hold Start button for 3 seconds until '0:01' is displayed, let appliance evacuate sump completely, then switch off.

E06

Tumble Dryer

Heating Element, Thermostat & Safety Fuse

Neff N 70 / N 90 Heat Pump Condenser tumble dryer: Heating element power relay fault E06; control module relay contacts fail to switch power to heater assembly.

On Neff tumble dryers: Burnt or pitted relay contacts from electrical arcing, open relay coil (nominal ~360–400 Ω), or cold solder joints on PCB.

Inspect power board for burnt relay terminals. Measure 12V DC relay coil resistance (~360–400 Ω). Resolder terminal pins or replace power module. Turn dial to position 6, hold Low Heat/Delicates button, turn dial to position 7, release and turn back to Off.

E6

Hob / Cooktop

Drive Motor, Inverter & Tachometer Sensor

Neff N 70 / N 90 TwistPad® / TwistPad Fire® & FlexInduction hob: Right induction generator module fault E6; power board phase L2 fails internal diagnostic cycle.

On Neff hobs: Blown IGBT on right zone inverter, defective bridge rectifier on phase L2, or open printed fuse on PCB.

De-energize cooktop. Test right inverter bridge rectifiers and IGBTs for dead shorts with DMM. Replace right power module. Remove TwistPad magnetic dial, clean glass surface, replace TwistPad on red illuminated ring, hold Key symbol for 4 seconds.

E07

Dishwasher

NTC Temperature Sensor & Thermistor

Neff N 50 / N 70 / N 90 Chef 70° & DoorOpen Assist dishwasher: Zeolith drying fan / airflow restriction E07; zeolite air circulation blower motor blocked or thermistor out of spec.

On Neff dishwashers: Foreign matter caught in Zeolith fan impeller, moisture/corrosion on blower motor connector, or open motor winding (nominal ~120–160 Ω).

Inspect Zeolith blower assembly in right base. Ensure fan spins freely. Measure blower motor winding resistance (120–160 Ω). Clear air duct outlet. Press and hold Start button for 3 seconds until '0:01' is displayed, let appliance evacuate sump completely, then switch off.

E7

Hob / Cooktop

Drive Motor, Inverter & Tachometer Sensor

Neff N 70 / N 90 TwistPad® / TwistPad Fire® & FlexInduction hob: Cooling fan malfunction E7; tachometer feedback signal missing or fan motor speed falls below 500 RPM.

On Neff hobs: Dust or grease buildup jamming fan impeller blades, disconnected fan harness, or seized motor bearings.

Inspect fan under cooktop for physical obstruction. Verify 12V DC fan supply voltage and tachometer pulse signal on PCB pin. Clean or replace fan. Remove TwistPad magnetic dial, clean glass surface, replace TwistPad on red illuminated ring, hold Key symbol for 4 seconds.

E08

Dishwasher

Water Level Pressure Switch & Air Dome

Neff N 50 / N 70 / N 90 Chef 70° & DoorOpen Assist dishwasher: Low water level in sump during heating E08; heat pump detects insufficient water coverage over heating ring.

On Neff dishwashers: Excess foam from hand dishwashing soap, overturned bowl collecting rinse water, sluggish water intake, or clogged sump filter.

Remove excessive foam with cold water rinse. Inspect microfilter in sump. Verify inlet flow rate (> 2.5 L/min). Ensure deep bowls face downwards. Press and hold Start button for 3 seconds until '0:01' is displayed, let appliance evacuate sump completely, then switch off.

E08

Tumble Dryer

Electronic Control Board (PCB) & Bus Communications

Neff N 70 / N 90 Heat Pump Condenser tumble dryer: Heat pump auxiliary relay / defrost fault E08; heat pump evaporator icing up or defrost cycle fails to initiate.

On Neff tumble dryers: Defective defrost changeover valve solenoid, stuck auxiliary compressor relay, or low refrigerant charge causing freeze-up.

Defrost machine completely. Measure defrost solenoid coil resistance (~2.0–2.5 kΩ). Inspect compressor auxiliary relays on control board. Turn dial to position 6, hold Low Heat/Delicates button, turn dial to position 7, release and turn back to Off.

E8

Hob / Cooktop

General System & Mechanical Integration

Neff N 70 / N 90 TwistPad® / TwistPad Fire® & FlexInduction hob: Cookware detection fault E8; resonant circuit fails to establish stable magnetic coupling with pan bottom.

On Neff hobs: Incompatible non-ferromagnetic cookware (aluminum/copper), diameter too small for selected zone, or cracked induction coil ferrite.

Test cookware bottom with a permanent magnet (must adhere firmly). Center cookware precisely. If error occurs on all pans, inspect ferrite rods. Remove TwistPad magnetic dial, clean glass surface, replace TwistPad on red illuminated ring, hold Key symbol for 4 seconds.

E09

Dishwasher

Heating Element, Thermostat & Safety Fuse

Neff N 50 / N 70 / N 90 Chef 70° & DoorOpen Assist dishwasher: Heating circuit open failure E09; heat pump heating element open circuit, water remains cold throughout cycle.

On Neff dishwashers: Burnt thick-film heating element on heat pump casing, thermal fuse open, or loose wiring harness plug on heater terminals.

Disconnect mains. Measure resistance across heat pump terminals L and N (nominal 19–22 Ω; open circuit if > 1 kΩ). Replace complete heat pump assembly. Press and hold Start button for 3 seconds until '0:01' is displayed, let appliance evacuate sump completely, then switch off.

E09

Tumble Dryer

Heating Element, Thermostat & Safety Fuse

Neff N 70 / N 90 Heat Pump Condenser tumble dryer: Heating circuit open circuit error E09; heating element coil open or thermal fuse blown, drum blows cold air.

On Neff tumble dryers: Burnt dual heating spiral (~22–26 Ω / ~45–52 Ω), blown non-resettable thermal fuse, or melted terminal wiring connector.

Disconnect mains. Measure resistance across heating element terminals (nominal ~22–26 Ω). Verify thermal fuse continuity (< 0.5 Ω). Replace heater assembly. Turn dial to position 6, hold Low Heat/Delicates button, turn dial to position 7, release and turn back to Off.

E9

Hob / Cooktop

General System & Mechanical Integration

Neff N 70 / N 90 TwistPad® / TwistPad Fire® & FlexInduction hob: Touch panel capacitive calibration failure E9; touch sensor controller detects finger contact during system boot sequence.

On Neff hobs: Finger resting on glass during power connection, moisture film under glass edge, or damaged capacitive spring connector.

Switch off circuit breaker. Clean glass surface thoroughly and dry completely. Re-energize without touching glass for 10 seconds. Remove TwistPad magnetic dial, clean glass surface, replace TwistPad on red illuminated ring, hold Key symbol for 4 seconds.

E10

Dishwasher

Heating Element, Thermostat & Safety Fuse

Neff N 50 / N 70 / N 90 Chef 70° & DoorOpen Assist dishwasher: Scale build-up on heating element E10; reduced heat transfer efficiency and slow water temperature rise.

On Neff dishwashers: Heavy lime scale deposit insulating heating element surface, depleted softening salt in ion exchanger, or hard water setting wrong.

Refill salt container with coarse dishwasher salt. Run intensive descaling cycle with citric acid descaler. Check hardness setting according to local water supply. Press and hold Start button for 3 seconds until '0:01' is displayed, let appliance evacuate sump completely, then switch off.

E10

Refrigerator / Freezer

Refrigeration Compressor, Defrost Heater & PTC Relay

Neff N 70 / N 90 FreshSafe 3 & NoFrost built-in refrigerator: Compressor inverter communication failure E10; master control board loses serial telemetry link with inverter PCB.

On Neff refrigerators: Broken PWM control harness between main PCB and compressor inverter box, blown auxiliary power fuse, or failed optocoupler.

Check PWM control signal wiring continuity between main PCB and inverter module (< 0.5 Ω). Measure frequency/voltage on PWM pins (approx. 2–5V pulse). Press and hold Alarm symbol for 5 seconds until acoustic chime stops and display returns to normal temperature.

E011

Oven / Microwave

General System & Mechanical Integration

Neff N 50 / N 70 / N 90 Slide&Hide® & CircoTherm® Pyrolytic Oven with ShiftControl: Stuck capacitive touch key sensor E011; touch control surface senses permanent touch activation for > 10 seconds.

On Neff ovens: Grease splatter, spilled liquids, or cleaning residue film covering capacitive spring pads on front glass panel.

Wipe glass fascia with clean, warm damp microfiber cloth and dry thoroughly. Ensure no objects lean against touch controls. Turn oven off, hold 'i' Info and Clock icons simultaneously on ShiftControl panel for 4 seconds, or cycle mains breaker.

E11

Dishwasher

NTC Temperature Sensor & Thermistor

Neff N 50 / N 70 / N 90 Chef 70° & DoorOpen Assist dishwasher: NTC temperature sensor fault E11; thermistor resistance signal open, shorted, or outside calibration limits.

On Neff dishwashers: Defective NTC thermistor in heat pump or sump, corroded connector terminals, or broken signal lead in lower harness.

Measure NTC sensor resistance across pins (nominal ~10 kΩ at 20°C, ~4.9 kΩ at 40°C, ~2.5 kΩ at 60°C). Replace NTC sensor or heat pump assembly. Press and hold Start button for 3 seconds until '0:01' is displayed, let appliance evacuate sump completely, then switch off.

E11

Refrigerator / Freezer

Electronic Control Board (PCB) & Bus Communications

Neff N 70 / N 90 FreshSafe 3 & NoFrost built-in refrigerator: Display user interface communication error E11; door display panel fails serial handshake with power electronics.

On Neff refrigerators: Broken or fatigue-sheared wires inside upper door hinge flexible sleeve, loose inline connector, or water ingress in display.

Dismantle upper hinge cable cover and examine each individual wire for internal copper fracture. Test continuity and verify 12V DC power feed. Press and hold Alarm symbol for 5 seconds until acoustic chime stops and display returns to normal temperature.

E12

Dishwasher

Drainage System & Drain Pump

Neff N 50 / N 70 / N 90 Chef 70° & DoorOpen Assist dishwasher: Severe lime scale build-up warning E12; thermal sensors detect heat retention on heating ring during drain.

On Neff dishwashers: Very hard water without softening salt, clogged salt valve actuator, or calcified heating tube surface.

Perform complete descaling with professional descaling agent. Test regeneration valve solenoid resistance (~2.2–2.5 kΩ). Top up salt and set hardness. Press and hold Start button for 3 seconds until '0:01' is displayed, let appliance evacuate sump completely, then switch off.

E13

Dishwasher

NTC Temperature Sensor & Thermistor

Neff N 50 / N 70 / N 90 Chef 70° & DoorOpen Assist dishwasher: High water inlet temperature E13; intake water exceeds maximum design temperature limit (> 75°C).

On Neff dishwashers: Appliance accidentally connected to unmixed solar hot water or central heating loop exceeding 60°C, or faulty NTC.

Connect appliance to cold water supply or install thermostatic mixing valve set to max 60°C. Verify NTC resistance at ambient temperature (~10 kΩ at 20°C). Press and hold Start button for 3 seconds until '0:01' is displayed, let appliance evacuate sump completely, then switch off.

E14

Dishwasher

Water Inlet Valve, Aquastop & Flowmeter

Neff N 50 / N 70 / N 90 Chef 70° & DoorOpen Assist dishwasher: Flowmeter turbine impulse signal missing E14; water fills but reed switch sensor fails to count pulses.

On Neff dishwashers: Jammed impeller turbine in water matrix (heat exchanger), oxidised reed switch contacts, or disconnected harness to control PCB.

Remove left side panel. Inspect flowmeter turbine on water matrix. Check continuity across reed switch while running water (multimeter beeps on spin). Press and hold Start button for 3 seconds until '0:01' is displayed, let appliance evacuate sump completely, then switch off.

E15

Dishwasher

Drainage System & Drain Pump

Neff N 50 / N 70 / N 90 Chef 70° & DoorOpen Assist dishwasher: AquaStop safety flood protection triggered E15; polystyrene float switch in base tray activated, drain pump runs continuously.

On Neff dishwashers: Water leak into bottom drip tray from sump gasket, loose circulation pump hose, cracked water inlet matrix, or leaking door seal.

Disconnect power. Sponge water from bottom pan to drop float switch. Locate source of leak (often sump gasket; install Bosch sump repair kit 12005744). Press and hold Start button for 3 seconds until '0:01' is displayed, let appliance evacuate sump completely, then switch off.

E15

Tumble Dryer

Heating Element, Thermostat & Safety Fuse

Neff N 70 / N 90 Heat Pump Condenser tumble dryer: Safety high-limit thermostat tripped E15; heater housing overtemperature switch opened, shutting off heating coils.

On Neff tumble dryers: Blocked lint filters restricting airflow, motor belt slipped stopping cooling air fan, or dryer door opened mid-cycle at high heat.

Clean all lint filters and vacuum condenser. Check for red manual reset button on heater housing (press to reset). Measure continuity (< 0.5 Ω). Turn dial to position 6, hold Low Heat/Delicates button, turn dial to position 7, release and turn back to Off.

E15

Refrigerator / Freezer

Refrigeration Compressor, Defrost Heater & PTC Relay

Neff N 70 / N 90 FreshSafe 3 & NoFrost built-in refrigerator: Defrost heater system malfunction E15; evaporator heating element fails to melt frost within maximum defrost duration.

On Neff refrigerators: Open-circuit defrost tubular aluminum heater, blown thermal bimetal fuse (open > 72°C), or stuck defrost relay on main PCB.

Access evaporator coil. Measure defrost heater resistance (nominal ~240–380 Ω). Verify thermal safety fuse continuity (< 0.5 Ω). Replace heater/fuse assembly. Press and hold Alarm symbol for 5 seconds until acoustic chime stops and display returns to normal temperature.

E16

Dishwasher

Water Inlet Valve, Aquastop & Flowmeter

Neff N 50 / N 70 / N 90 Chef 70° & DoorOpen Assist dishwasher: Uncontrolled water inflow / solenoid valve leak E16; water continually enters tub even when inlet valve is de-energized.

On Neff dishwashers: Mechanically jammed AquaStop solenoid valve seat (limescale or sand grain), or shorted inlet triac on power module.

Turn off water tap immediately. Check for 230V AC at AquaStop when powered off; if present, replace power board. If 0V, replace AquaStop inlet hose. Press and hold Start button for 3 seconds until '0:01' is displayed, let appliance evacuate sump completely, then switch off.

E16

Tumble Dryer

NTC Temperature Sensor & Thermistor

Neff N 70 / N 90 Heat Pump Condenser tumble dryer: Exhaust air temperature safety cutout E16; exhaust duct sensor exceeds safety temperature limit (> 95°C).

On Neff tumble dryers: Severely restricted exhaust air outlet, crushed flexible exhaust vent hose, or jammed front blower fan wheel.

Inspect external exhaust venting for clogs or bird nests. Verify front blower fan spins smoothly. Measure exhaust NTC resistance (~10 kΩ at 25°C). Turn dial to position 6, hold Low Heat/Delicates button, turn dial to position 7, release and turn back to Off.

E16

Washing Machine

Door Lock Mechanism & Safety Interlock

Neff N 50 / N 70 / N 90 Efficient SilentDrive washing machine: Door interlock open fault E16; appliance cannot start wash program because door latch contacts remain unmade.

On Neff washers: Laundry trapped between door glass and rubber bellows, worn mechanical latch strike hook, or open circuit in PTC door lock coil.

Press door firmly until it clicks. Inspect door hook for mechanical damage. Measure resistance across door lock terminals 1 and 3 (nominal ~180–240 Ω). Turn selector to 6 o'clock position, press and hold Spin Speed reduction key, turn selector to 7 o'clock, release key, turn to Off.

E17

Dishwasher

Water Inlet Valve, Aquastop & Flowmeter

Neff N 50 / N 70 / N 90 Chef 70° & DoorOpen Assist dishwasher: High water inlet pressure / overflow risk E17; flow rate into heat exchanger exceeds maximum allowable speed.

On Neff dishwashers: Household water mains pressure > 10 bar (1.0 MPa), water hammer effect, or flow restrictor missing from inlet hose.

Partially close household supply tap to throttle water intake. Install a water pressure regulator (set to 2.5–4.0 bar) to protect the internal matrix. Press and hold Start button for 3 seconds until '0:01' is displayed, let appliance evacuate sump completely, then switch off.

E17

Washing Machine

Water Inlet Valve, Aquastop & Flowmeter

Neff N 50 / N 70 / N 90 Efficient SilentDrive washing machine: Water inlet timeout alarm E17; appliance fails to reach required wash level within 5 minutes of filling.

On Neff washers: Closed water supply tap, kinked fill hose, clogged mesh filter in AquaStop inlet valve, or defective solenoid valve coil (~4.0–4.5 kΩ).

Verify water tap pressure (min 10 L/min bucket test). Unscrew hose and clean inlet filter screen. Measure solenoid valve coil resistance (~4.0–4.5 kΩ). Turn selector to 6 o'clock position, press and hold Spin Speed reduction key, turn selector to 7 o'clock, release key, turn to Off.

E18

Dishwasher

Water Inlet Valve, Aquastop & Flowmeter

Neff N 50 / N 70 / N 90 Chef 70° & DoorOpen Assist dishwasher: Low water flow inlet timeout E18; minimum water volume not achieved within programmed filling time window.

On Neff dishwashers: Water supply tap barely open, clogged wire mesh filter inside AquaStop union nut, kinked inlet hose, or faulty flowmeter.

Verify bucket test at tap (must deliver > 10 L/min). Clean inlet mesh filter. Straighten inlet hose. Check flowmeter impulse output. Press and hold Start button for 3 seconds until '0:01' is displayed, let appliance evacuate sump completely, then switch off.

E18

Washing Machine

Drainage System & Drain Pump

Neff N 50 / N 70 / N 90 Efficient SilentDrive washing machine: Draining timeout failure E18; washer fails to evacuate tub wastewater within programmed 6-minute window.

On Neff washers: Coins, hairpins, or lint clogged in coin trap filter, kinked drain hose, blocked sink standpipe, or seized drain pump impeller.

Drain residual water via emergency drain tube. Unscrew pump filter cap and clear debris. Verify free rotation of pump impeller. Test drain pump (~140–180 Ω). Turn selector to 6 o'clock position, press and hold Spin Speed reduction key, turn selector to 7 o'clock, release key, turn to Off.

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Neff — Complete Error Code Catalog

158 Verified Error Codes

Server-side index of all verified manufacturer error codes for technicians and automated crawlers.

Dishwasher38

E01 E02 E03 E04 E05 E06 E07 E08 E09 E10 E11 E12 E13 E14 E15 E16 E17 E18 E19 E20 E21 E22 E23 E24 E25 E26 E27 E28 E29 E30 E31 E3000 E3100 E3200 E6101 E6900 E9001 E9210

Washing Machine48

E34 E35 E37 E38 E42 E43 E44 E47 E48 E49 E50 E57 E59 E60 E61 E67 F16 F17 F18 F19 F20 F21 F22 F23 F25 F26 F27 F28 F29 F31 F34 F35 F36 F37 F38 F42 F43 F44 F47 F48 F49 F50 F57 F59 F60 F61 F63 F67

Tumble Dryer16

E32 E36 E51 E52 E53 E54 E55 E56 E63 E71 E72 E73 E74 E75 E89 E90

Oven / Microwave19

E005 E011 E101 E104 E106 E115 E305 E310 E395 E396 E845 E5116 E5122 Er1 Er2 Er4 Er6 Er8 Key Symbol

Hob / Cooktop36

d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 E0 E1 E2 E3 E4 E5 E6 E7 E8 E9 E0513 E7015 E8207 F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 U1 U2 U3

Refrigerator / Freezer1

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