Asko dryer w/humidity sensor problem

Hi folks,

We recently acquired an Asko washer and dryer. The dryer is a model 7305. It was apparently working at its old home.

Upon getting it home and hooking it up, it runs for a couple of minutes, and then shuts off with an F5 code, indicating a problem with the humidity sensor. Internet research tells me that it could be as simple as lint on the sensor, could be wiring, or could be a bad sensor.

Where would I expect to find this sensor? Once I locate it, is cleaning it about the only thing I can do short of replacing it?

I do not know if this will help:

Manual For an Asko dryer

Page 18 has: Sensor error: Fault in the humidity sensor. This
error message may also appear if you run the
machine with laundry that is already dry, or run
it empty. Open the door and the message should
disappear.