My AEG washer dryer is not heating on the dryer cycle. The model number is L75670WD. I previously had a few error messages and had it 'fixed'. Now Im not getting error messages, everything seems to be working fine but no heat when drying. I have tried cleaning the filter and this doesn't work. I have read a few articles about it being tripped. Is there a red reset button on this model? Could this be the problem?