Indesit Tumble dryer filter light staying on. Dry doesn't start?

Hello, I have an Indesit IDCAG35 tumble dryer which is just over 2 years old and has suddenly stopped working. The filter light stays on and the reset/pause button flashes. The filter has been cleaned after every drying cycle and the condenser unit has been washed and is clean. There is no fluff build up anywhere in the filter or condenser region. Any suggestions would be appreciated.