Ariston Dishwasher Error Codes Ariston Dishwasher Error Codes AL01 1-3 Aquastop triggered leakage in body pan. The float has surfaced. AL02 2-4 Water does not flow first, check SV fill valve. AL03 1-2 3-4 Circulation Pump Fault. Level sensor malfunction Maximum time to drain water is exceeded (more than 4 minutes). The level sensor is