Ariston Dishwasher Error Code AL 10

AL 10 means the dishwasher timer has detected an open heating element circuit. After the pressure switch confirms water is present, the timer expects the heating circuit to complete within 9 seconds. If it does not, or if the heating element relay is found open, the AL 10 code is set. The fault can involve the wiring, the element itself, or the relay on the timer board.

You should not continue running the dishwasher with AL 10 active. The code indicates a break in the heating circuit, which means your dishes will not be properly sanitized and the machine has already halted the cycle for protection. Running repeated cycles without addressing the fault is unlikely to resolve anything and could mask a more serious wiring issue.

Repair costs vary depending on the faulty component. If only a disconnected wire is the issue, the cost may be limited to a service call fee, typically in the range of $75 to $150. Replacing a heating element generally costs $100 to $250 including parts and labor. A faulty timer board with a failed relay is typically the most expensive repair, often ranging from $150 to $350 or more depending on parts availability.

Some causes of AL 10, such as a disconnected wire or a loose terminal at the heating element or timer, can be found and corrected by a confident DIYer with basic electrical knowledge. However, testing relay contacts on the timer board and replacing a faulty heating element require working safely around mains-voltage components. If you are not comfortable working with live appliance circuits, a qualified technician should perform the diagnosis.

A power reset may clear the displayed code temporarily, but if the underlying fault in the heating element circuit has not been corrected, the code will return as soon as the dishwasher reaches the heating stage of the next cycle. The fault must be diagnosed and the defective component or wiring repaired before the error is fully resolved.