I had the same question so I called the phone number posted on the Servis website: 0121 568 8333
They said that if you are drying only:
1) you have to press the half load button
2) make sure the dial is set at the 10 o'clock or 6 o'clock position
**Make sure to set the drying time to be over an hour as 1/2 hour will be spent on warming up and cooling down.
Annie
October 2005