Ariston Washer Error Code F13

F13 on an Ariston AWD combination washer-dryer indicates a fault with the NTC dryer temperature sensor. The control board has detected either an open circuit or a short circuit on the sensor circuit and cannot obtain a valid temperature reading. This code applies only to AWD models that include a dryer function. The machine will not safely complete drying cycles until the fault is resolved.

The washing function may still operate depending on how the control board handles the fault, but you should avoid using the dryer cycle while F13 is active. Without a working temperature sensor, the control board cannot regulate dryer heat properly, which creates a risk of overheating. Address the fault before relying on the appliance for drying laundry.

Repair costs depend on the root cause. If the fix is simply reseating a loose connector, there may be no parts cost and only a service call fee, typically in the range of $75 to $150. A replacement NTC sensor is generally an inexpensive part, often in the $15 to $50 range. If the control board requires replacement, total repair costs including labor can range from $200 to $400 or more depending on the specific model and local labor rates.

A knowledgeable DIYer can start by inspecting the wiring harness connectors between the NTC sensor and the control board for looseness or corrosion, which is a no-cost fix if that is the cause. Testing the sensor resistance requires a multimeter but is straightforward. Replacing the sensor or control board involves disassembly and working near electrical components, so if you are not comfortable with that level of repair, a qualified appliance technician is recommended.

A power reset may temporarily clear the error display, but F13 will return as soon as the control board attempts to read the NTC sensor again during a drying cycle. The underlying fault in the sensor circuit must be diagnosed and repaired for the code to clear permanently. Resetting without repair is not a solution.