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Ardo • Central Diagnostic Dictionary
43 Verified Codes in Database

Ardo Error Codes & Diagnostics

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

Luxury front-loading washing machine in brushed titanium with illuminated dark glass drum
CodeAppliancesFault / DiagnosticsRepair InstructionsAction
AL01
Dishwasher
General System & Mechanical Integration

Ardo AL01: Operational cycle fault detected during Dishwasher program execution.

The float switch in the base of the machine has been activated, indicating a leak.

Unplug, find the source of the leak (hoses, seals, tub), and repair it. Dry the base pan completely to reset the switch.

Diagnose
AL05
Dishwasher
Drainage System & Drain Pump

Drain pump electrical fault

The control board has detected an electrical anomaly (e.g., short circuit) with the drain pump.

Unplug the machine. Disconnect and test the drain pump windings with a multimeter. Check wiring for damage. Replace the pump if it has shorted out.

Diagnose
DOOR
Washing Machine
Door Lock Mechanism & Safety Interlock

Ardo DOOR: Door lock safety interlock fault in Washing Machine; door switch contact fails to close or open.

The appliance detects that the door is not securely closed and latched.

Close the door firmly until you hear a click. Check for any obstructions preventing the door from closing. Inspect the door latch and switch for damage.

Diagnose
E01
Washing Machine
Door Lock Mechanism & Safety Interlock

Ardo E01: Door lock safety interlock fault in Washing Machine; door switch contact fails to close or open.

The machine has failed to lock the door. This could be due to a faulty door interlock, wiring, or the main control board.

Check that the door is closed properly. Inspect the door lock mechanism for damage. Test the wiring and the interlock. Replace if faulty.

Diagnose
E1
Dishwasher
Water Inlet Valve, Aquastop & Flowmeter

Water inlet timeout / Aquastop active

The dishwasher has failed to fill with water in the allotted time, or the Aquastop anti-flood device on the hose has been triggered.

Ensure the water tap is open and the inlet hose is not kinked. Check for leaks that may have triggered the Aquastop. Test the water inlet valve.

Diagnose
E02
Washing Machine
Water Inlet Valve, Aquastop & Flowmeter

Ardo E02: Water inlet / filling timeout in Washing Machine; appliance fails to fill to minimum operational level.

The machine has not filled with water to the required level within the set time. Caused by a closed water tap, kinked inlet hose, or faulty inlet valve.

Ensure the water supply is on and the hose is not kinked. Clean the filter in the inlet valve. Test and replace the water inlet valve if necessary.

Diagnose
E03
Washing Machine
Drainage System & Drain Pump

Ardo E03: Water drainage failure detected in Washing Machine; drain pump cannot evacuate water within safety time limit.

The machine has failed to drain the water within the set time. Caused by a blocked drain pump filter, blocked drain hose, or a faulty drain pump.

Check and clean the drain pump filter. Ensure the drain hose is not kinked or blocked. Check the drain pump for blockages and test its operation.

Diagnose
E3
Dishwasher
Drainage System & Drain Pump

Ardo E3: Water drainage failure detected in Dishwasher; drain pump cannot evacuate water within safety time limit.

The dishwasher is unable to drain the water. The filter is blocked, the drain hose is obstructed, or the drain pump has failed.

Clean the filters inside the dishwasher. Check the drain hose for kinks and blockages. Inspect the drain pump impeller for debris and test the pump motor.

Diagnose
E04
Washing Machine
Water Level Pressure Switch & Air Dome

Overfill or anti-flood error

The pressure switch has detected too much water in the drum, or the anti-flood switch in the base has been activated by a leak.

Check for leaks inside the machine. Inspect the pressure switch and its hose for blockages or faults. Check the water inlet valve to ensure it's not stuck open.

Diagnose
E4
Dishwasher
Heating Element, Thermostat & Safety Fuse

Water heating element fault

The dishwasher has detected a problem with the heating circuit. This could be a failed heating element, faulty wiring, or an issue on the control board.

Disconnect power and test the heating element for continuity. Check all wiring and connections to the heater. The control board may be at fault if the element is good.

Diagnose
E05
Washing Machine
NTC Temperature Sensor & Thermistor

Ardo E05: NTC temperature sensor signal out of range (open or short circuit) in Washing Machine.

The NTC (temperature sensor) is reporting an open or short circuit. This could be a faulty sensor, wiring issue, or a control board problem.

Test the resistance of the NTC sensor (it should be around 4-6 kOhms at room temperature). Check wiring between the sensor and the board. Replace sensor if faulty.

Diagnose
E5
Dishwasher
Water Level Pressure Switch & Air Dome

Ardo E5: Water level pressure sensor/switch frequency anomaly detected in Dishwasher.

The pressure sensor has detected that the water level is too high inside the tub.

Check the water inlet valve to ensure it's not stuck open, letting water in continuously. Inspect the pressure sensor and its tubing for blockages.

Diagnose
E06
Washing Machine
Electronic Control Board (PCB) & Bus Communications

Ardo E06: Operational cycle fault detected during Washing Machine program execution.

The main control board has detected an error with the program selection dial or its circuitry.

This often requires professional diagnosis. Check connections to the selector switch. The selector or main board may need replacement.

Diagnose
E6
Dishwasher
NTC Temperature Sensor & Thermistor

Temperature probe (NTC) error

The control board has detected an open or short circuit from the NTC temperature sensor.

Test the resistance of the NTC sensor. Inspect its wiring for any breaks or loose connections. Replace the sensor if it is out of specification.

Diagnose
E07
Washing Machine
Drive Motor, Inverter & Tachometer Sensor

Ardo E07: Motor drive or inverter rotation anomaly in Washing Machine; drum/motor fails to spin at target RPM.

The control board is not receiving a signal from the motor's speed sensor (tacho). The drum may spin briefly at high speed and then stop.

Check the wiring to the motor tacho. Inspect the tacho coil on the motor shaft. The motor or tacho may need to be replaced.

Diagnose
E7
Dishwasher
Water Inlet Valve, Aquastop & Flowmeter

Ardo E7: Water inlet / filling timeout in Dishwasher; appliance fails to fill to minimum operational level.

The flow meter, which measures the amount of water entering the machine, is not sending the correct signals to the control board.

Check the wiring to the flow meter. The flow meter itself may be blocked with scale or have failed and needs replacement.

Diagnose
E08
Washing Machine
Drive Motor, Inverter & Tachometer Sensor

Motor speed sensor (tacho) fault

The motor's tachometer coil is faulty, the magnet has detached, or there is a wiring issue to the control board.

Check the wiring to the motor's tacho connection. Inspect the tacho coil and magnet on the end of the motor shaft. The motor may require replacement.

Diagnose
E09
Washing Machine
Drive Motor, Inverter & Tachometer Sensor

Ardo E09: Motor drive or inverter rotation anomaly in Washing Machine; drum/motor fails to spin at target RPM.

An open circuit has been detected in the motor, often related to the motor TRIAC on the control board or the motor itself.

Inspect the motor's carbon brushes for wear. Check wiring and connections at the motor and control board. The motor or control board may be faulty.

Diagnose
E10
Washing Machine
Drive Motor, Inverter & Tachometer Sensor

Ardo E10: Motor drive or inverter rotation anomaly in Washing Machine; drum/motor fails to spin at target RPM.

The control board detects an issue with the motor's power controller (TRIAC), but not a direct short circuit.

This is a control board level fault. It typically requires the replacement of the main electronic module.

Diagnose
E12
Washing Machine
Electronic Control Board (PCB) & Bus Communications

Communication error between boards

On models with separate control and display boards, the communication link has been lost.

Inspect the ribbon cable or wiring harness that connects the two electronic boards for damage or loose connections.

Diagnose
E17
Washing Machine
Door Lock Mechanism & Safety Interlock

Door lock positioning error

This can be caused by a misaligned door strike or a faulty microswitch within the door interlock assembly.

Check door alignment and the strike plate. Test the microswitches in the door lock. Replace the door lock assembly if faulty.

Diagnose
E18
Washing Machine
Electronic Control Board (PCB) & Bus Communications

Main board microprocessor fault

A critical error has occurred with the main processor on the control board. This is a fatal board error.

The main control board (ECU) must be replaced.

Diagnose
ER03
Hob / Cooktop
General System & Mechanical Integration

Stuck button on touch control

The hob's electronic control has detected that a button on the touch panel has been continuously pressed for an extended period.

Ensure there are no objects on the control panel. Clean the glass surface thoroughly with a suitable cleaner. A spill or moisture can trigger this. If it persists, the touch control unit may be faulty.

Diagnose
F01
Oven / Microwave
NTC Temperature Sensor & Thermistor

Temperature sensor open circuit

The main control board has detected that the oven's temperature sensor (NTC/thermistor) circuit is open, likely due to a broken wire or failed sensor.

Disconnect power. Test the sensor for continuity and correct resistance (check manual for specs). Inspect wiring. Replace sensor if faulty.

Diagnose
F1
Refrigerator / Freezer
NTC Temperature Sensor & Thermistor

Refrigerator compartment sensor fault

The NTC sensor that measures the temperature in the main fridge compartment is faulty (open or short circuit).

Locate the sensor in the fridge section. Test its resistance and check wiring. Replace the sensor if readings are incorrect.

Diagnose
F02
Oven / Microwave
NTC Temperature Sensor & Thermistor

Temperature sensor short circuit

The control board has detected a short circuit in the oven's temperature sensor, causing it to read an impossibly high temperature.

Disconnect power. Inspect sensor wiring for damage or shorting. Test the sensor for very low resistance. Replace the sensor if it has shorted internally.

Diagnose
F2
Refrigerator / Freezer
Refrigeration Compressor, Defrost Heater & PTC Relay

Refrigerator evaporator sensor fault

The NTC sensor attached to the evaporator coil in the fridge section has failed.

This sensor is usually behind a panel in the back of the fridge. Access and test the sensor and its wiring. Replace if necessary.

Diagnose
F03
Oven / Microwave
NTC Temperature Sensor & Thermistor

Ardo F03: NTC temperature sensor signal out of range (open or short circuit) in Oven / Microwave.

The oven has exceeded a safe maximum temperature. This could be caused by a stuck heating element relay or a faulty temperature sensor giving incorrect readings.

Allow the oven to cool completely. If the error returns immediately on startup, suspect a stuck relay on the power board. If it occurs during heating, check the sensor.

Diagnose
F3
Refrigerator / Freezer
NTC Temperature Sensor & Thermistor

Freezer compartment sensor fault

The main temperature sensor (NTC) in the freezer compartment is reporting an error.

Locate, test, and if necessary, replace the NTC sensor within the freezer section.

Diagnose
F04
Oven / Microwave
Electronic Control Board (PCB) & Bus Communications

Ardo F04: Operational cycle fault detected during Oven / Microwave program execution.

The main power board and the user interface/display board are unable to communicate with each other.

Check the wiring harness and connectors between the two electronic boards for loose or damaged connections. One of the boards may have failed.

Diagnose
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Ardo — Complete Error Code Catalog

43 Verified Error Codes

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

Dishwasher10

AL01AL05E1E3E4E5E6E7F9H

Washing Machine16

DOORE01E02E03E04E05E06E07E08E09E10E12E17E18F13F14

Oven / Microwave8

F01F02F03F04F05F07F08STOP

Hob / Cooktop1

ER03

Refrigerator / Freezer8

F1F2F3F4F5F6F7F8

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