Hotpoint tumble dryer (Holmewood S42 5WJ)

This partially doesn’t work and would be ideal to someone who can fix this. The tumble dryer works when you turn it on but stops every 2/3 minutes as the sensor is broken which suggests the condenser is full when it is not. Therefore, it is likely the sensor needs replacing . Other than that it is only 3 year old and in good working order