| | Meaning / Cause | Likely Solution | | :--- | :--- | :--- | | A01 | Flood protection system (Aquastop) activated. The dishwasher will drain and then halt. | Check for leaks, check the pressure switch and its wiring. | | A02 | Heating system failure. The dishwasher is not heating the water. | Check the heating element, thermostats, wiring, and pressure sensor. | | A03 | Thermistor error detected. | Check the wiring to the thermistor and the thermistor itself. | | A04 | The dishwasher is unable to sense the correct temperature or reach it after a set time. | Often related to a faulty heating element or thermistor. | | F06 / A06 | Water fill timeout. The dishwasher's intake is taking too long. | Check water pressure, ensure the tap is fully open, and check the water inlet valve. | | F09 | Overfill error. The water level is too high. | Check for a faulty solenoid valve or aquastop, or a faulty level control sensor. | | F13 | PCB error. This is an electronics issue. | Often requires replacing the PCB (printed circuit board) by a professional. |
While specific cycles vary by exact sub-model, typical Ariston programs include:
Proper loading is essential for a thorough clean: ariston ls 603 dishwasher user manual
Approximately 2 hours. The Rapid 30’ program takes 30 minutes.
If your Ariston LS 603 stops working properly, you can often fix the issue without calling a technician. Review these common scenarios: Dishwasher Will Not Start | | Meaning / Cause | Likely Solution
Regular maintenance prevents foul odors and ensures clean dishes. Cleaning the Filter System
To get the cleanest dishes and prolong the lifespan of your appliance, follow these standard operational steps for every load. 1. Loading the Dishwasher | | A02 | Heating system failure
The filter assembly sits at the bottom of the tub and consists of a coarse filter, a flat main filter, and a micro-filter. Twist the micro-filter counter-clockwise and lift it out. Remove the flat metal main plate.
button. An indicator light will typically signal the unit is active. Add Detergent
The Ariston LS 603 dishwasher is a reliable, classic built-in appliance designed to deliver excellent cleaning results. While it features a straightforward mechanical and electronic layout, losing the original printed manual can make it difficult to decipher its cycle settings, indicator lights, and maintenance needs.