ASKO Washer Error Code Temperature stop fault

The Temperature stop fault means your Asko washer (W640, W650, or W660) completed a wash cycle without successfully heating the water to the programmed temperature. The control board detected a heating failure and logged the fault at the end of the cycle. The most common causes are a failed heating element or a blown fuse in the heating circuit. The wash finishes, but the water was likely at or near cold temperature throughout the cycle.

The washer can physically complete cycles after this fault, but water will not be heated, which reduces cleaning effectiveness and means sanitization cycles will not work as intended. There is no immediate safety hazard from a failed heating element itself, but a blown fuse may indicate an underlying electrical issue that should be investigated before continued heavy use.

Resetting the machine may clear the fault code temporarily, but the fault will return on the next cycle if the underlying heating problem has not been fixed. The fault is triggered by an actual failure in the heating circuit, not a software glitch, so clearing the code without repairing the root cause will not restore heating function. Address the fuses and heating element first before attempting a reset.

A knowledgeable DIYer can perform the initial diagnostics by checking the heating circuit fuses for continuity using a multimeter and visually inspecting the wiring and connectors. Testing and replacing the heating element is also within reach for someone comfortable working with appliance electrical components. However, if the control board is at fault, professional repair or replacement is generally recommended.

Repair costs vary depending on the failed component. Replacing a fuse is typically inexpensive, ranging from a few dollars for parts to around $50 to $100 if a technician is involved. A new heating element generally falls in the $50 to $150 parts range, with labor adding $75 to $150 or more depending on your area. Control board replacement is the most expensive scenario, often ranging from $200 to $400 or higher including labor.