Squeeking / squeeling from Candy cc2 17 smart dryer

I got an 18 month old drier and would like to know how to solve a squeeking / squeeling problem - it only does in one direction and it sounds quite loud - it has always been a 'noisy' drier form new - the belt is ok and tight - The filters are clean - the difficulty is getting to the motor and tensioner device - i've got some technical knowledge but cant see a way to get to them please help andy and di Loud squeaking/grinding noise stared in one direction only, but gradually built up to all the time! Seems OK when cool though, ie when first switched on and cooling down at the end of cycle. Drier still works very efficiently but this sound is driving me mad! Any suggestions??