Access our premium database of error codes, common faults, and professional repair solutions for Ariston appliances.
Freezer temperature too high
The freezer compartment is not reaching the correct temperature. This could be due to a door left open, a faulty door seal, or a system fault.
Check that the door is closed properly and the seal is intact. Ensure there is adequate ventilation around the appliance. If the issue persists, check the evaporator fan and defrost system.
Fridge temperature too high
The refrigerator compartment is too warm. This may be due to a sensor fault or an issue with the damper control or fan.
Check the fridge temperature sensor (thermistor). Ensure the air vents between the freezer and fridge are not blocked. Check the damper control operation.
Ariston A3: Water drainage failure detected in Dishwasher; drain pump cannot evacuate water within safety time limit.
The dishwasher is unable to drain water within the specified time. This is usually due to a blocked filter or drain hose.
Clean the main filter and microfilter inside the dishwasher. Check the drain hose for kinks or blockages. Inspect the drain pump.
Temperature sensor (NTC) error
The dishwasher has detected an issue with the temperature sensor, which may be open or short-circuited.
Check the wiring to the NTC sensor. Test the resistance of the sensor and replace it if it's out of specification.
Ariston A5: Water level pressure sensor/switch frequency anomaly detected in Dishwasher.
The pressure switch, which monitors water level, is blocked or faulty, giving an incorrect reading.
The spray arms may be blocked. Clean the spray arm jets. If the problem persists, the pressure switch may need replacing.
Ariston A6: Water inlet / filling timeout in Dishwasher; appliance fails to fill to minimum operational level.
The dishwasher has failed to fill with water in the allotted time. The water supply might be off or the inlet valve faulty.
Ensure the water supply tap is open. Check the inlet hose for kinks. Clean the filter in the inlet valve.
Ariston A7: Operational cycle fault detected during Dishwasher program execution.
The diverter valve, which directs water to the upper or lower spray arms, is faulty or jammed.
Check the diverter valve for blockages and ensure it can move freely. Check its wiring. May require replacement.
Ariston A8: NTC temperature sensor signal out of range (open or short circuit) in Dishwasher.
The dishwasher is not heating the water correctly. This could be a faulty heating element or a temperature sensor issue.
Check the heating element for continuity. Check the wiring to the heater and the NTC sensor. The main board could be at fault.
Water inlet solenoid fault
The water inlet valve (solenoid) is not opening or is faulty, preventing water from entering the appliance.
Check the wiring to the inlet valve. Test the solenoid coils for resistance. Replace the inlet valve if faulty.
Ariston ER CF: Operational cycle fault detected during Refrigerator / Freezer program execution.
Communication error between the main control board and the user interface/display board.
Check the wiring harness connecting the main board to the display. If secure, one of the boards may be faulty.
Ariston ER DS: Cooling circuit or defrost system anomaly in Refrigerator / Freezer; compartment temperature deviation.
The defrost sensor (thermistor) located on the evaporator is shorted or has an open circuit.
Locate the defrost sensor on the evaporator coils. Test its resistance and check wiring. Replace the sensor if out of spec.
Ariston ER IS: NTC temperature sensor signal out of range (open or short circuit) in Refrigerator / Freezer.
The temperature sensor for the icemaker is reporting an error.
Inspect the icemaker's sensor and wiring. The entire icemaker assembly may need to be replaced.
Control board communication error
The main control board has detected an internal communication failure.
Try resetting the oven by turning off the power at the breaker for 5 minutes. If the error returns, the control board needs to be replaced.
Ariston F1: NTC temperature sensor signal out of range (open or short circuit) in Refrigerator / Freezer.
The refrigerator compartment's temperature sensor (thermistor) is open or short-circuited.
Test the resistance of the fridge thermistor and check its wiring. Replace if faulty.
Motor jammed or tacho detached
The motor is not turning or the control board is not receiving a signal from the motor's speed sensor (tacho).
Check motor for blockages. Inspect wiring between motor and PCB. Check motor brushes for wear. Test the tacho coil.
Ariston F2: Water inlet / filling timeout in Dishwasher; appliance fails to fill to minimum operational level.
The dishwasher is unable to fill with water. Similar to A6, this points to an issue with the water supply or inlet valve.
Ensure water tap is open. Check inlet hose for blockages or kinks. Clean the filter in the water inlet valve.
Oven temperature sensor (NTC) open
The control board has detected an open circuit in the temperature sensor, meaning it's likely disconnected or failed.
Check the wiring and connection plug for the oven temperature sensor. Test the sensor for resistance; replace if faulty (open circuit).
Freezer thermistor faulty
The freezer compartment's temperature sensor (thermistor) is open or short-circuited.
Test the resistance of the freezer thermistor and check its wiring. Replace if faulty.
Oven temperature sensor (NTC) shorted
The control board has detected a short circuit in the temperature sensor.
Check the wiring for any shorts. Test the resistance of the sensor; replace if faulty (zero or very low resistance).
No feedback from freezer fan
The control board is not detecting rotation from the freezer's evaporator fan.
Check the fan for obstructions like ice build-up. Inspect the fan motor and its wiring harness.
Pump blocked or pressure switch fault
The machine has failed to drain the water. This is usually due to a blocked pump filter or a faulty pressure switch.
Clean the drain pump filter. Check the drain hose for kinks or blockages. Inspect the pressure switch and its connecting hose.
Ariston F5: Motor drive or inverter rotation anomaly in Refrigerator / Freezer; drum/motor fails to spin at target RPM.
The motorized damper that controls airflow from the freezer to the fridge is stuck or faulty.
Inspect the air damper for physical obstructions. Check the damper motor and its wiring. Replace the damper assembly if necessary.
Ariston F06: Door lock safety interlock fault in Washing Machine; door switch contact fails to close or open.
The machine cannot detect if the door is open or closed correctly. This could be a faulty door lock mechanism or a wiring issue.
Check that the door is closing properly. Inspect the door lock mechanism and its wiring. Replace the door interlock if necessary.
Ariston F6: Operational cycle fault detected during Washing Machine program execution.
A button on the control panel is detected as being continuously pressed.
Clean the control panel, ensuring no debris is causing a button to stick. If the error persists, the user interface board may be faulty.
Ariston F07: Water/air heating failure in Washing Machine; heating circuit does not reach set temperature.
The main control board has detected that the water heating element relay is stuck in the on position.
This error usually indicates a fault on the main control board (PCB), which will need to be replaced.
Ariston F7: Cooling circuit or defrost system anomaly in Refrigerator / Freezer; compartment temperature deviation.
The defrost heating element is not drawing current, indicating it is open circuit or has a wiring issue.
Test the defrost heater for continuity. Check the defrost thermostat (bi-metal) and the thermal fuse.
Ariston F08: Operational cycle fault detected during Oven / Microwave program execution.
The function selector switch is sending an invalid signal to the main control board.
Inspect the selector switch and its wiring harness for damage or loose connections. The switch may need to be replaced.
Water turbidity sensor fault
The sensor that measures how dirty the water is (turbidity sensor) is not providing a correct reading.
Clean the sensor lens, which is located in the sump area. Check the wiring to the sensor. The sensor may need to be replaced.
Ariston F09: Operational cycle fault detected during Washing Machine program execution.
A setup or memory error has occurred on the main control board. This can sometimes happen after a power surge.
Try unplugging the appliance for 10-15 minutes to reset it. If the error persists, the control board needs to be reprogrammed or replaced.
Ariston F10: Water/air heating failure in Oven / Microwave; heating circuit does not reach set temperature.
The oven's safety thermostat has detected an excessive temperature, possibly due to a faulty cooling fan or a stuck heating element relay.
Check if the cooling fan is operating correctly. Test the main heating element relays on the control board.
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