Open up the condenser unit clean it as thoroughly as possible removing all fluff. Remove any fluff around the fluff collector. Dry out the condenser unit with papertowels where wet.
condenser unit is located at the bottom left hand (while facing dryer) corner of the machine behind the panel. Unscrew the front portion of the unit and clean. Replace screws and use a paper towel to dry inside the space where the unit sits and then put it back.
Or you can just replace the unit...thats my next line of defence :) Have owned mine for 3years plus now and have been doing that i.e. cleaning out condenser unit and it would work fine after with no problems. But now I think the unit is shot so am replacing it.
Hope this helps.
Belinda, May 2009