Ariston Dishwasher Error Code AL 08

AL 08 is a heating timeout error indicating that the wash water did not reach the required temperature within 60 minutes of the cycle starting. The fault is detected by the control board monitoring input from the NTC temperature sensor. It typically points to a problem with the NTC thermistor, the heating element, or the wiring connecting those components.

You should not continue running the dishwasher while AL 08 is active. The cycle has been interrupted because the water is not heating correctly, which means dishes will not be properly cleaned or sanitized. Running the machine repeatedly without resolving the fault can also place unnecessary stress on other components.

Repair costs vary depending on which component has failed. Replacing an NTC thermistor is generally a lower-cost repair, typically in the range of $50 to $150 including parts and labor. A heating element replacement tends to cost more, often falling between $100 and $250 depending on your location and the technician's rates. If the fault is simply a loose connection, a service call alone may resolve it.

Start by checking whether the NTC thermistor is properly seated against the sump casing, as a detached sensor is a frequent cause. Next, inspect all wiring connections at both the NTC and the heating element for looseness or corrosion. If connections are secure and the NTC is correctly positioned, test the heating element for continuity and the NTC for proper resistance values to determine which component needs replacement.

A reset may temporarily clear the fault code, but if the underlying problem with the NTC sensor, heating element, or wiring is not corrected, the error will return once the dishwasher runs another cycle and again fails to heat within 60 minutes. A reset is useful for confirming whether a fault was a one-time event, but it is not a fix.