Ariston Dishwasher Error Code AL 02

AL 02 means the dishwasher's flow meter (turbine) detected water still entering the machine for about 10 seconds after the inlet solenoid valve was commanded to close. This indicates the inlet solenoid valve is stuck open or faulty. The dishwasher stops the cycle to prevent overfilling or flooding. The inlet valve and its wiring cables should be inspected first.

No, you should not continue running the dishwasher with AL 02 active. A stuck-open inlet valve can allow water to overflow into the appliance or onto the floor, creating a risk of water damage and potentially an electrical hazard. Leave the dishwasher off and the water supply valve closed until the fault is diagnosed and repaired.

If only the inlet solenoid valve needs replacing, parts typically range from around $20 to $60 depending on the specific model. If you hire a technician, labor costs will add roughly $80 to $150 on top of the part cost. If the fault turns out to be a wiring issue rather than a failed valve, repair costs may be lower since no parts are required.

A knowledgeable DIYer can diagnose this fault by inspecting the inlet solenoid valve, checking for debris in the valve seat, and examining the wiring harness for damage or corrosion. If the valve itself is faulty, replacing it requires disconnecting the water supply, removing the old valve, and fitting a compatible replacement. Always disconnect power and shut off the water supply before beginning any inspection or repair.

A reset may temporarily clear the error code and allow the cycle to restart, but if the underlying fault with the inlet solenoid valve or its wiring has not been resolved, AL 02 will return. In many cases it will reappear within the same cycle or the next wash cycle. A reset should only be used after the root cause has been identified and corrected.