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De-Longhi • Central Diagnostic Dictionary
17 Verified Codes in Database

De-Longhi Error Codes & Diagnostics

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

Luxury front-loading washing machine in brushed titanium with illuminated dark glass drum
CodeAppliancesFault / DiagnosticsRepair InstructionsAction
E01
Washing Machine
Door Lock Mechanism & Safety Interlock

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

The machine has detected that the door is not closed and locked correctly. This can be a faulty door lock mechanism, a wiring issue, or a problem with the door latch itself.

Ensure the door is firmly closed. Check the door lock for damage. Test the door lock switch and wiring. Replace the door lock assembly if necessary.

Diagnose
E02
Washing Machine
Water Level Pressure Switch & Air Dome

De-Longhi E02: Water level pressure sensor/switch frequency anomaly detected in Washing Machine.

The machine has failed to fill with water to the correct level within a set time. This could be due to a closed water tap, kinked inlet hose, blocked inlet valve filter, or a faulty pressure switch.

Check that the water supply is on. Inspect the inlet hose for kinks. Clean the filter in the inlet valve. Check the pressure switch and its tubing for blockages.

Diagnose
E03
Washing Machine
Drainage System & Drain Pump

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

The machine has not been able to drain water. The drain pump filter is likely blocked, the drain hose is kinked or blocked, or the drain pump has failed.

Unscrew and clean the drain pump filter. Check the drain hose for blockages. Inspect the pump impeller to see if it's jammed. Test the pump motor.

Diagnose
E04
Washing Machine
Water Level Pressure Switch & Air Dome

Anti-flood / Overfill detected

The pressure switch has detected too much water in the drum. This is often caused by a faulty water inlet valve that won't shut off, or a faulty pressure switch.

Check the water inlet valve to see if it closes correctly. Inspect the pressure switch and the tube connected to it for blockages or damage.

Diagnose
E05
Washing Machine
NTC Temperature Sensor & Thermistor

Temperature sensor (NTC) fault

The control board is not receiving a correct reading from the water temperature sensor (NTC). The sensor or its wiring is faulty.

Check the wiring between the NTC sensor and the control board. Test the resistance of the sensor (it should be around 4700 Ohms at room temperature). Replace the sensor if faulty.

Diagnose
E06
Washing Machine
Drive Motor, Inverter & Tachometer Sensor

De-Longhi E06: Motor drive or inverter rotation anomaly in Washing Machine; drum/motor fails to spin at target RPM.

The control board has detected a problem with the main drive motor, often related to the motor's tacho coil which measures speed, or worn carbon brushes.

Check the carbon brushes on the motor for wear (if applicable). Check motor wiring and connections. Test the motor's tacho coil for correct resistance.

Diagnose
Err09
Oven / Microwave
Drive Motor, Inverter & Tachometer Sensor

Door lock mechanism failure

The oven's motorized door lock has failed to lock or unlock correctly, often an issue during or after a high-temperature cleaning (pyrolytic) cycle.

Allow the oven to cool completely. Try power cycling the appliance. If the door remains locked or the error persists, the door lock motor assembly likely needs to be inspected and replaced.

Diagnose
F1
Dishwasher
Water Level Pressure Switch & Air Dome

De-Longhi F1: Water level pressure sensor/switch frequency anomaly detected in Dishwasher.

Water has been detected in the base of the machine, activating the anti-flood switch. This is typically caused by an internal leak.

Disconnect from power. Check for leaks from hoses, pump, or sump seals. Drain the base pan and reset the float switch.

Diagnose
F2
Dishwasher
Drainage System & Drain Pump

De-Longhi F2: Water drainage failure detected in Dishwasher; drain pump cannot evacuate water within safety time limit.

The dishwasher is unable to drain the water within the allotted time. The drain filter may be blocked, the drain hose could be kinked or blocked, or the drain pump may be faulty.

Check and clean the drain filter. Inspect the drain hose for kinks or blockages. Check the drain pump for obstructions and test its operation.

Diagnose
F3
Dishwasher
NTC Temperature Sensor & Thermistor

De-Longhi F3: NTC temperature sensor signal out of range (open or short circuit) in Dishwasher.

The dishwasher is unable to heat the water to the required temperature in the specified time. This could be due to a faulty heating element, a faulty temperature sensor (NTC), or wiring issues.

Test the heating element for continuity. Check the NTC sensor for correct resistance values. Inspect wiring to the heater and sensor.

Diagnose
F5
Dishwasher
Water Inlet Valve, Aquastop & Flowmeter

De-Longhi F5: Water inlet / filling timeout in Dishwasher; appliance fails to fill to minimum operational level.

The machine is not filling with enough water. The water supply tap might be closed, the inlet hose could be kinked, or the water inlet valve is faulty.

Ensure the water supply is turned on and the hose is not kinked. Clean the filter in the inlet valve. Test the water inlet valve solenoid for operation.

Diagnose
F6
Dishwasher
NTC Temperature Sensor & Thermistor

Temperature sensor (NTC) error

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

Check the wiring to the NTC sensor. Test the resistance of the NTC sensor; it should change with temperature. Replace the sensor if it's out of specification.

Diagnose
F8
Dishwasher
Heating Element, Thermostat & Safety Fuse

De-Longhi F8: Water/air heating failure in Dishwasher; heating circuit does not reach set temperature.

The control board has detected a fault with the heating element itself, separate from the heating timeout.

Disconnect power and test the heating element for continuity. If there is no continuity, the element needs to be replaced.

Diagnose
F9
Dishwasher
Drive Motor, Inverter & Tachometer Sensor

Diverter valve position error

The diverter valve, which directs water to the upper or lower spray arms, is stuck or has failed.

Inspect the diverter valve for blockages. Test the diverter valve motor and position switch. Replace the diverter valve assembly if faulty.

Diagnose
F3E0
Oven / Microwave
NTC Temperature Sensor & Thermistor

Oven temperature sensor open circuit

The main control board has detected an open circuit in the oven temperature sensor (probe/thermistor). The sensor may be faulty or disconnected.

Disconnect power. Access the temperature sensor at the back of the oven cavity. Check for loose connections. Test the sensor for resistance (should be ~1080 Ohms at room temp). Replace if faulty.

Diagnose
F4E0
Oven / Microwave
NTC Temperature Sensor & Thermistor

Oven temperature sensor short circuit

The main control board has detected a short circuit in the oven temperature sensor (probe/thermistor).

Disconnect power. Access the temperature sensor. Check for damaged wiring that could be shorting. Test the sensor for very low or zero resistance. Replace sensor if shorted.

Diagnose
F8E0
Oven / Microwave
NTC Temperature Sensor & Thermistor

De-Longhi F8E0: NTC temperature sensor signal out of range (open or short circuit) in Oven / Microwave.

The oven has detected a temperature far above the set point, indicating a runaway heating situation. This could be a stuck relay on the control board or a shorted temperature sensor.

Immediately disconnect from power. Check the temperature sensor. If the sensor is okay, the fault is likely with the main control board's heating relay, requiring board replacement.

Diagnose

De-Longhi — Complete Error Code Catalog

17 Verified Error Codes

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

Dishwasher7

F1F2F3F5F6F8F9

Washing Machine6

E01E02E03E04E05E06

Oven / Microwave4

Err09F3E0F4E0F8E0
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