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De Dietrich • Central Diagnostic Dictionary
130 Verified Codes in Database

De Dietrich Error Codes & Diagnostics

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

Luxury front-loading washing machine in brushed titanium with illuminated dark glass drum
CodeAppliancesFault / DiagnosticsRepair InstructionsAction
AL01
Refrigerator / Freezer
Refrigeration Compressor, Defrost Heater & PTC Relay

De Dietrich Prestige No Frost / DRS Multi-Zone Refrigerator: High temperature alarm in freezer compartment AL01; internal temperature rises above -9°C and audible buzzer sounds.

On De Dietrich refrigeration units featuring Prestige No Frost multi-sensor refrigeration, active preservation zone, and inverter compressor modulation: Door left ajar, magnetic perimeter gasket damaged, loss of refrigerant gas charge (R600a), or weak compressor pump.

Check door closure and verify magnetic seal airtightness with a paper strip. Allow 12 hours for stabilization if newly stocked. If compressor runs continuously without cooling, leak test system. Touch and hold the Alarm Acknowledge and Quick Chill icons for 8 seconds until the ICS chime signals buffer reset, then release.

Diagnose
AL02
Refrigerator / Freezer
Refrigeration Compressor, Defrost Heater & PTC Relay

De Dietrich Prestige No Frost / DRS Multi-Zone Refrigerator: Door open warning signal persistent AL02; acoustic door alarm sounds and interior light remains energized with door shut.

On De Dietrich refrigeration units featuring Prestige No Frost multi-sensor refrigeration, active preservation zone, and inverter compressor modulation: Displaced door magnet, stuck mechanical pushbutton switch, or failed reed sensor switch inside the control panel frame.

Test door switch continuity with a multimeter: must toggle from 0 Ω (closed door) to infinite Ω (open door). Check that door magnet in upper door edge is properly seated. Touch and hold the Alarm Acknowledge and Quick Chill icons for 8 seconds until the ICS chime signals buffer reset, then release.

Diagnose
AL03
Refrigerator / Freezer
Refrigeration Compressor, Defrost Heater & PTC Relay

De Dietrich Prestige Refrigerator displays 'AL03' accompanied by acoustic beeping and flashing freezer digits.

De Dietrich electronic control detects freezer temperature remaining above -5°C for more than 4 hours following door opening.

Press Alarm Cancel button to silence buzzer. Verify freezer door gasket seal. Ensure evaporator fan is blowing cold air through the tower.

Diagnose
AS
Hob / Cooktop
Electronic Control Board (PCB) & Bus Communications

De Dietrich Piano Zoneless / Horizone / DPI Induction Cooktop: Auto-Stop safety timeout triggered AS; all induction cooking zones shut down automatically after liquid spillover or prolonged cooking.

On De Dietrich cooktops utilizing Piano full-surface zoneless induction matrix, 16-level power modulation, and Boil function boilover prevention: Boiling liquid overflowed onto capacitive touch keys, metallic utensil left on keys, or unattended cooking timeout reached.

Remove hot cookware and wipe glass surface completely clean and dry with a dry cloth. Touch the master On/Off key to resume normal cooking. Clear the ceramic surface, turn off the dedicated breaker for 60 seconds, restore supply and touch the Key Lock sensor for 5 seconds.

Diagnose
d01
Dishwasher
Water Inlet Valve, Aquastop & Flowmeter

De Dietrich Quattro / Space / DFI Luxury Built-in Dishwasher: Water fill timeout d01; appliance fails to fill with adequate water volume within 4 minutes of program launch.

On De Dietrich dishwashers featuring Quattro 4-level hydraulic spray distribution, ICS turbidity assessment, and 42dB acoustic encapsulation: Closed water isolation cock, clogged aquastop filter mesh, or open inlet solenoid coil (~3.8 kΩ).

Inspect tap flow rate. Unscrew hose connection and clean the inline strainer. Measure aquastop solenoid resistance (~3.8 kΩ). Press and hold Programme Selection and Start buttons for 5 seconds until all cycle lights illuminate steadily, then switch off power.

Diagnose
d01
Tumble Dryer
Drainage System & Drain Pump

De Dietrich Prestige Heat Pump & Condensation Tumble Dryer: Condensation water reservoir full d01; dryer halts cycle and triggers acoustic water tank warning.

On De Dietrich tumble dryers utilizing Prestige dual-stage heat pump compressor, active conductivity fabric sensing, and low-temperature wool cycle logic: Full water recovery tank, stuck polystyrene float microswitch, or obstructed condensate drain tube.

Empty upper condensation drawer. Inspect lower float switch chamber and remove lint fluff. Test float microswitch with a multimeter. Touch the Power pad off, press and hold Extra Dry and Start sensors for 6 seconds until the melody sounds, then reboot the appliance.

Diagnose
d01
Refrigerator / Freezer
Refrigeration Compressor, Defrost Heater & PTC Relay

De Dietrich Prestige No Frost / DRS Multi-Zone Refrigerator: Fridge compartment temperature sensor failure d01; internal cold air temperature fluctuates uncontrollably.

On De Dietrich refrigeration units featuring Prestige No Frost multi-sensor refrigeration, active preservation zone, and inverter compressor modulation: Open circuit, shorted NTC thermistor, or moisture ingress in the refrigerator cavity sensor harness.

Measure the refrigerator NTC resistance: expect approx. 5.0 kΩ at 25°C or 16.3 kΩ at 0°C. If reading is infinite (open) or zero (short), replace the sensor kit. Touch and hold the Alarm Acknowledge and Quick Chill icons for 8 seconds until the ICS chime signals buffer reset, then release.

Diagnose
d01
Washing Machine
Water Level Pressure Switch & Air Dome

De Dietrich Prestige / DWF Inverter Washing Machine: Water intake timeout d01; tub water level does not reach wash threshold within 6 minutes of valve opening.

On De Dietrich washing machines featuring Prestige DWF brushless inverter drive, optoelectronic water metering, and anti-vibration cabinet damping: Low mains pressure (<0.5 bar), blocked inlet filter screen, kinked hose, or open dual solenoid valve coil (~3.8 kΩ).

Check mains tap pressure (>10 L/min). Clean the inlet hose filter. Measure resistance of both solenoid coils (~3.8 kΩ). Touch the Power button off, touch and hold Option and Start keys together for 6 seconds until 'rSt' illuminates, then cycle mains power.

Diagnose
d02
Dishwasher
Drainage System & Drain Pump

De Dietrich Quattro / Space / DFI Luxury Built-in Dishwasher: Drain pump timeout d02; dirty wash water remains pooled in the sump tub after 3 minutes of pumpout.

On De Dietrich dishwashers featuring Quattro 4-level hydraulic spray distribution, ICS turbidity assessment, and 42dB acoustic encapsulation: Bone fragment or glass shard wedging the drain impeller, kinked drain tube, or open drain motor winding (~180–220 Ω).

Remove microfilter basket and reach into sump to clear debris from impeller. Measure drain pump winding resistance (~180–220 Ω). Press and hold Programme Selection and Start buttons for 5 seconds until all cycle lights illuminate steadily, then switch off power.

Diagnose
d02
Tumble Dryer
General System & Mechanical Integration

De Dietrich Prestige Heat Pump & Condensation Tumble Dryer: Condensate lift pump failure d02; water fails to pump up into collection tank and accumulates in chassis sump base.

On De Dietrich tumble dryers utilizing Prestige dual-stage heat pump compressor, active conductivity fabric sensing, and low-temperature wool cycle logic: Jammed pump impeller due to lint slurry, kinked silicone riser tube, or open pump coil (~2.2 kΩ).

Dismantle lower rear pump casing and rinse away lint sludge. Measure pump coil resistance (~2.2 kΩ). Confirm 230V AC arrival during pump cycle. Touch the Power pad off, press and hold Extra Dry and Start sensors for 6 seconds until the melody sounds, then reboot the appliance.

Diagnose
d02
Refrigerator / Freezer
Refrigeration Compressor, Defrost Heater & PTC Relay

De Dietrich Prestige No Frost / DRS Multi-Zone Refrigerator: Freezer evaporator defrost sensor error d02; automatic defrost termination fails causing frost build-up.

On De Dietrich refrigeration units featuring Prestige No Frost multi-sensor refrigeration, active preservation zone, and inverter compressor modulation: Defective evaporator NTC sensor, fractured clipped mounting bracket, or degraded wiring connector.

Check evaporator NTC resistance: expect approx. 10.0 kΩ at 25°C and 32.5 kΩ at 0°C. Clip probe securely onto the evaporator return tube and reseal moisture jacket. Touch and hold the Alarm Acknowledge and Quick Chill icons for 8 seconds until the ICS chime signals buffer reset, then release.

Diagnose
d02
Washing Machine
Drainage System & Drain Pump

De Dietrich Prestige / DWF Inverter Washing Machine: Drain pump timeout d02; water remains in the drum after 4 minutes of continuous drain pump operation.

On De Dietrich washing machines utilizing Prestige DWF brushless inverter drive, optoelectronic water metering, and anti-vibration cabinet damping: Blocked coin trap, foreign object wedging the impeller, kinked drain hose, or open pump motor winding (~160–220 Ω).

Unscrew and clean the front coin filter. Inspect pump impeller for rotation. Measure drain pump winding resistance (~160–220 Ω). Touch the Power button off, touch and hold Option and Start keys together for 6 seconds until 'rSt' illuminates, then cycle mains power.

Diagnose
d03
Dishwasher
Heating Element, Thermostat & Safety Fuse

De Dietrich Quattro / Space / DFI Luxury Built-in Dishwasher: Wash heating system failure d03; water remains unheated during wash cycles and dishes exit wet and unwashed.

On De Dietrich dishwashers utilizing Quattro 4-level hydraulic spray distribution, ICS turbidity assessment, and 42dB acoustic encapsulation: Open flow-through tubular heating element (~25–28 Ω), tripped safety klixon, or welded PCB heater relay.

Measure flow-through heater resistance across terminals (~25–28 Ω). Verify safety thermostat continuity (~0 Ω). Check chassis insulation (>10 MΩ). Press and hold Programme Selection and Start buttons for 5 seconds until all cycle lights illuminate steadily, then switch off power.

Diagnose
d03
Tumble Dryer
Heating Element, Thermostat & Safety Fuse

De Dietrich Prestige Heat Pump & Condensation Tumble Dryer: Process air heating circuit fault d03; tumble dryer rotates cold air and clothes remain damp after prolonged running.

On De Dietrich tumble dryers utilizing Prestige dual-stage heat pump compressor, active conductivity fabric sensing, and low-temperature wool cycle logic: Open calrod heating element branch (~22–35 Ω), blown thermal link fuse, or tripped safety thermostat on rear duct.

Disconnect mains power. Remove rear duct shroud and measure resistance of each heater coil (~22–35 Ω). Verify safety thermostats (~0 Ω). Touch the Power pad off, press and hold Extra Dry and Start sensors for 6 seconds until the melody sounds, then reboot the appliance.

Diagnose
d03
Refrigerator / Freezer
Refrigeration Compressor, Defrost Heater & PTC Relay

De Dietrich Prestige No Frost / DRS Multi-Zone Refrigerator: Ambient room temperature sensor error d03; unit cannot adapt cooling cycles to room climate variations.

On De Dietrich refrigeration units featuring Prestige No Frost multi-sensor refrigeration, active preservation zone, and inverter compressor modulation: Disconnected ambient sensor integrated into display fascia or top hinge cover, or wire pinched.

Inspect the ambient NTC sensor located behind the control fascia or top hinge: measure ~5.0 kΩ at 25°C. Check wiring continuity back to mainboard connector. Touch and hold the Alarm Acknowledge and Quick Chill icons for 8 seconds until the ICS chime signals buffer reset, then release.

Diagnose
d03
Washing Machine
Heating Element, Thermostat & Safety Fuse

De Dietrich Prestige / DWF Inverter Washing Machine: Heating circuit timeout d03; water temperature fails to increase by more than 2°C within 30 minutes of wash cycle.

On De Dietrich washing machines featuring Prestige DWF brushless inverter drive, optoelectronic water metering, and anti-vibration cabinet damping: Open calrod heating element (~25–28 Ω), open thermal fuse, or stuck heater relay on the power module.

Disconnect power and remove rear service panel. Measure heating element resistance (~25–28 Ω). Check continuity to ground (>10 MΩ). Touch the Power button off, touch and hold Option and Start keys together for 6 seconds until 'rSt' illuminates, then cycle mains power.

Diagnose
d04
Dishwasher
NTC Temperature Sensor & Thermistor

De Dietrich Quattro / Space / DFI Luxury Built-in Dishwasher: Sump NTC temperature thermistor fault d04; temperature readings deviate outside 0°C to 85°C operating parameters.

On De Dietrich dishwashers featuring Quattro 4-level hydraulic spray distribution, ICS turbidity assessment, and 42dB acoustic encapsulation: Calibrated NTC thermistor drifted or shorted (~47 kΩ at 25°C, ~15 kΩ at 50°C), or loose socket connector.

Unclip NTC probe from sump wall. Measure resistance with multimeter (~47 kΩ at 25°C). Replace probe if open or displaying aberrant value. Press and hold Programme Selection and Start buttons for 5 seconds until all cycle lights illuminate steadily, then switch off power.

Diagnose
d04
Tumble Dryer
Drive Motor, Inverter & Tachometer Sensor

De Dietrich Prestige Heat Pump & Condensation Tumble Dryer: Drum motor drive stall d04; drive motor hums loudly or fails to turn the drum loaded with damp laundry.

On De Dietrich tumble dryers utilizing Prestige dual-stage heat pump compressor, active conductivity fabric sensing, and low-temperature wool cycle logic: Degraded motor run capacitor (~8 µF), seized drum support rollers, or jammed blower fan turbine.

Measure motor run capacitor with a capacitance meter (~8 µF ±5%). Spin drum manually to check roller bearings. Replace capacitor or free rollers. Touch the Power pad off, press and hold Extra Dry and Start sensors for 6 seconds until the melody sounds, then reboot the appliance.

Diagnose
d04
Refrigerator / Freezer
Refrigeration Compressor, Defrost Heater & PTC Relay

De Dietrich Prestige No Frost / DRS Multi-Zone Refrigerator: Defrost heating element or thermal fuse circuit fault d04; evaporator coil blocked with solid ice, stopping airflow.

On De Dietrich refrigeration units featuring Prestige No Frost multi-sensor refrigeration, active preservation zone, and inverter compressor modulation: Open-circuit calrod defrost heater, blown inline thermal safety fuse (72°C/77°C), or stuck defrost relay on power PCB.

Disconnect power and test defrost heater resistance: expect approx. 250–320 Ω. Test the inline thermal fuse: must read 0 Ω (closed). Replace blown fuse or element. Touch and hold the Alarm Acknowledge and Quick Chill icons for 8 seconds until the ICS chime signals buffer reset, then release.

Diagnose
d04
Washing Machine
Drive Motor, Inverter & Tachometer Sensor

De Dietrich Prestige / DWF Inverter Washing Machine: Motor drive electronic fault d04; drum spins at uncontrollable high speed immediately upon cycle start.

On De Dietrich washing machines featuring Prestige DWF brushless inverter drive, optoelectronic water metering, and anti-vibration cabinet damping: Short-circuited motor drive triac (A1-A2 short) on main control board or failed inverter power module.

Inspect motor wiring harness for chafe points. Measure triac resistance across anodes (A1 to A2 should be >100 kΩ). Replace control board if shorted. Touch the Power button off, touch and hold Option and Start keys together for 6 seconds until 'rSt' illuminates, then cycle mains power.

Diagnose
d05
Dishwasher
Drive Motor, Inverter & Tachometer Sensor

De Dietrich Quattro / Space / DFI Luxury Built-in Dishwasher: Wash circulation pump stall d05; main wash motor hums but fails to rotate spray arms and wash dishes.

On De Dietrich dishwashers utilizing Quattro 4-level hydraulic spray distribution, ICS turbidity assessment, and 42dB acoustic encapsulation: Degraded starting capacitor (~4 µF), calcium-locked ceramic mechanical seal, or open motor winding (~70–110 Ω).

Test motor run capacitor capacitance with a digital meter (~4 µF ±5%). Spin motor rear shaft manually to free seal. Measure motor windings (~70–110 Ω). Press and hold Programme Selection and Start buttons for 5 seconds until all cycle lights illuminate steadily, then switch off power.

Diagnose
d05
Tumble Dryer
NTC Temperature Sensor & Thermistor

De Dietrich Prestige Heat Pump & Condensation Tumble Dryer: Front exhaust air NTC thermistor fault d05; controller registers out-of-bounds temperature signal on lint filter duct.

On De Dietrich tumble dryers utilizing Prestige dual-stage heat pump compressor, active conductivity fabric sensing, and low-temperature wool cycle logic: Open or shorted front NTC thermistor probe (~10 kΩ at 25°C, ~3.5 kΩ at 60°C), or loose socket connector.

Remove front lower grille. Disconnect NTC sensor plug and measure resistance (~10 kΩ at 25°C). Replace probe if values deviate. Touch the Power pad off, press and hold Extra Dry and Start sensors for 6 seconds until the melody sounds, then reboot the appliance.

Diagnose
d05
Refrigerator / Freezer
Refrigeration Compressor, Defrost Heater & PTC Relay

De Dietrich Prestige No Frost / DRS Multi-Zone Refrigerator: Evaporator circulation fan motor failure d05; cold air does not circulate into the refrigeration compartments.

On De Dietrich refrigeration units featuring Prestige No Frost multi-sensor refrigeration, active preservation zone, and inverter compressor modulation: Ice accumulation jamming fan blades, seized motor bearings, or missing 12V DC drive supply from power PCB.

Check for ice obstructing the fan wheel. Verify 12V DC across fan motor leads when compressor is active. If voltage is present but motor does not turn, replace fan. Touch and hold the Alarm Acknowledge and Quick Chill icons for 8 seconds until the ICS chime signals buffer reset, then release.

Diagnose
d05
Washing Machine
NTC Temperature Sensor & Thermistor

De Dietrich Prestige / DWF Inverter Washing Machine: Wash NTC temperature sensor fault d05; microcomputer detects out-of-range sensor readings (< -10°C or > 105°C).

On De Dietrich washing machines featuring Prestige DWF brushless inverter drive, optoelectronic water metering, and anti-vibration cabinet damping: Defective NTC probe (~12 kΩ at 20°C, ~5 kΩ at 50°C), oxidized push-on connectors, or broken signal wiring harness.

Disconnect sensor plug at heating element base. Measure NTC resistance (~12 kΩ at 20°C). Check wiring continuity to main PCB connector. Touch the Power button off, touch and hold Option and Start keys together for 6 seconds until 'rSt' illuminates, then cycle mains power.

Diagnose
d06
Dishwasher
Drive Motor, Inverter & Tachometer Sensor

De Dietrich Quattro / Space / DFI Luxury Built-in Dishwasher: Wash motor overcurrent cutoff d06; power electronic controller trips due to excessive electric current draw by the circulation pump.

On De Dietrich dishwashers featuring Quattro 4-level hydraulic spray distribution, ICS turbidity assessment, and 42dB acoustic encapsulation: Foreign object (toothpick, seed) jamming the impeller volute, or shorted turns in stator winding.

Disassemble wash pump volute and remove foreign debris. Measure running current with an ammeter clamp (<1.2A). Replace motor if shorted. Press and hold Programme Selection and Start buttons for 5 seconds until all cycle lights illuminate steadily, then switch off power.

Diagnose
d06
Tumble Dryer
NTC Temperature Sensor & Thermistor

De Dietrich Prestige Heat Pump & Condensation Tumble Dryer: Rear heating duct NTC thermistor fault d06; heater bank inlet temperature measurement is erratic or open.

On De Dietrich tumble dryers utilizing Prestige dual-stage heat pump compressor, active conductivity fabric sensing, and low-temperature wool cycle logic: Defective rear duct NTC thermistor probe (~20 kΩ at 25°C, ~6 kΩ at 60°C), or heat-degraded wire insulation.

Access rear air channel. Unplug NTC thermistor and test resistance with a multimeter (~20 kΩ at 25°C). Inspect wiring for heat damage. Touch the Power pad off, press and hold Extra Dry and Start sensors for 6 seconds until the melody sounds, then reboot the appliance.

Diagnose
d06
Refrigerator / Freezer
Refrigeration Compressor, Defrost Heater & PTC Relay

De Dietrich Prestige No Frost / DRS Multi-Zone Refrigerator: Motorized air damper flap malfunction d06; fresh food compartment either freezes contents or remains too warm.

On De Dietrich refrigeration units featuring Prestige No Frost multi-sensor refrigeration, active preservation zone, and inverter compressor modulation: Frozen damper shutter mechanically stuck, stripped stepper gear teeth, or broken internal reed switch micro-contact.

Inspect the damper assembly in the air duct. Defrost any ice blockage. Measure motor winding resistance (approx. 2.2–2.8 kΩ or step coils ~400 Ω). Replace damper unit if jammed. Touch and hold the Alarm Acknowledge and Quick Chill icons for 8 seconds until the ICS chime signals buffer reset, then release.

Diagnose
d06
Washing Machine
Drive Motor, Inverter & Tachometer Sensor

De Dietrich Prestige / DWF Inverter Washing Machine: Motor tachometer signal fault d06; drum does not rotate or motor starts then immediately stops after speed feedback loss.

On De Dietrich washing machines featuring Prestige DWF brushless inverter drive, optoelectronic water metering, and anti-vibration cabinet damping: Dislodged magnetic ring on motor rear shaft, open tachometer coil (~65–95 Ω), or worn motor carbon brushes (<15 mm).

Verify tachometer magnet tightness on motor shaft. Measure tachometer coil resistance (~65–95 Ω). Inspect carbon brush length (>15 mm). Touch the Power button off, touch and hold Option and Start keys together for 6 seconds until 'rSt' illuminates, then cycle mains power.

Diagnose
d07
Dishwasher
Drainage System & Drain Pump

De Dietrich Quattro / Space / DFI Luxury Built-in Dishwasher: AquaSafe anti-flood base pan float triggered d07; machine halts wash cycle and forces continuous drain pumpout.

On De Dietrich dishwashers utilizing Quattro 4-level hydraulic spray distribution, ICS turbidity assessment, and 42dB acoustic encapsulation: Water accumulation in lower retention tray due to leaking sump O-ring, perforated hose, or tripped polystyrene float.

Disconnect power. Sponge dry the base tray under the appliance. Locate and repair the active water drip. Verify microswitch opens cleanly. Press and hold Programme Selection and Start buttons for 5 seconds until all cycle lights illuminate steadily, then switch off power.

Diagnose
d07
Tumble Dryer
General System & Mechanical Integration

De Dietrich Prestige Heat Pump & Condensation Tumble Dryer: Air circulation restriction detected d07; airflow differential pressure drops significantly across condenser heat exchanger.

On De Dietrich tumble dryers utilizing Prestige dual-stage heat pump compressor, active conductivity fabric sensing, and low-temperature wool cycle logic: Heavy lint compaction on fine mesh door filters, or blocked aluminum condenser fin channels.

Remove and wash lint filters under warm running water. Extract condenser block and flush with shower spray to clear all fin channels. Touch the Power pad off, press and hold Extra Dry and Start sensors for 6 seconds until the melody sounds, then reboot the appliance.

Diagnose
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De Dietrich — Complete Error Code Catalog

73 Verified Error Codes

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

Dishwasher20

d01d02d03d04d05d06d07d08d09d10d11d12d13d14F1F2F3F4F5F6

Washing Machine7

d21d22d23d24d25d26d27

Tumble Dryer6

d15d16d17d18d19d20

Oven / Microwave23

Er00Er01Er02Er03Er04Er05Er06Er07Er08Er09Er10Er11Er12Er13Er14Er15F01F02F03F04F05F10SAFE

Hob / Cooktop14

ASE1E2E3E4E5E6E7E8E9F0F7F8F9

Refrigerator / Freezer3

AL01AL02AL03

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