ASKO Washer Error Code Thermistor fault

This fault means the washer's water temperature sensor circuit has a problem. The control board has detected either an open circuit in the thermistor wiring, a failed thermistor, or a resistance reading below 300 ohms, which corresponds to a temperature above 120 degrees Celsius. The washer stops the cycle to prevent unsafe operation until the fault is corrected.

A reset may temporarily clear the fault display, but the code will return if the underlying problem has not been fixed. The fault is triggered by a measurable electrical condition, so the thermistor, its wiring, and connectors need to be inspected and repaired before the machine will operate reliably.

If only the thermistor needs to be replaced, the repair is relatively affordable, typically ranging from around 20 to 80 dollars for the part, plus labor if a technician is used. If the fault is caused by wiring damage or a control board issue, costs can range from 100 to 400 dollars or more depending on the component and labor rates in your area.

A knowledgeable DIYer with a multimeter can diagnose this fault by testing the thermistor's resistance across its terminals and inspecting the wiring harness for breaks or corrosion. If the thermistor reads below 300 ohms or shows no continuity, replacing the part is straightforward. However, if the fault points to a heating element or control board issue, professional repair is recommended.

No, you should not continue using the washer while this fault is active. The thermistor fault can indicate that the machine is unable to regulate water temperature correctly, which could mean water is reaching dangerously high temperatures. The washer halts the cycle for this reason, and operating it without resolving the fault could damage the machine or your laundry.