Ariston Washer Error Code F15

F15 on an Ariston AWD washer-dryer indicates that the control board has detected a short circuit in the relay controlling the dryer heating element. This fault is exclusive to AWD combo models that include a drying function. The machine stops operation to prevent further electrical or component damage. Diagnosis begins with checking the dryer heating element for continuity.

You should not continue using the appliance in drying mode while F15 is active, as a shorted relay can cause uncontrolled heating element behavior, which is a fire and electrical hazard. The washing function may still operate, but the drying circuit should be considered unsafe until the fault is diagnosed and repaired. Disconnect power if there is any sign of burning smell or visible damage.

Resetting the machine by disconnecting power for several minutes may temporarily clear the F15 code, but the fault will return if the underlying electrical problem is not corrected. The control board detects the relay short condition actively during operation, so the error will reappear as soon as the drying cycle is initiated again. A proper repair addressing the shorted element or relay is required for a lasting resolution.

A knowledgeable DIYer can begin by checking the heating element for continuity using a multimeter, which is the first recommended diagnostic step. If the element is shorted, it can be replaced as a discrete component. However, if the fault lies in the control board relay, board repair or replacement typically requires more advanced skills and may be better handled by a qualified technician.

Repair costs vary depending on which component has failed. A replacement dryer heating element typically falls in the range of $30 to $80 for parts, while a replacement control board can range from $100 to $250 or more. Adding a technician labor charge of $80 to $150 per hour, total repair costs can range from around $100 for a simple element replacement to $400 or more for a control board repair.