A fault code narrows the search. It does not end it. Older Asko machines signal faults by flashing program lights in a pattern you have to count and then look up; newer ones put a code on the display. Either way the code names a circuit, not a culprit. A code pointing at a temperature sensor is caused by the wiring to that sensor, a corroded connector, or the board driving the circuit at least as often as by the sensor itself. Ordering the part a code names, without measuring, is how the same repair gets paid for twice.
We confirm the model and serial number from the plate, retrieve whatever the control has stored, then measure – resistance, continuity, voltage, fill rate, real temperature – before deciding anything. On this make a second question follows straight after the first: is the part still made, and what does the lead time look like? Parts for older Asko machines are a real consideration, and we would rather raise it during the diagnosis than after you have paid for one. You get the finding in plain language and a figure in writing, and nothing is repaired until you have said yes to it.
We also diagnose the machines most technicians rarely meet. Asko is one of very few brands selling a drying cabinet in the US, and a cabinet that has stopped heating or stopped moving air is not something to approach by guesswork.