Hi i’m after some advice about my LG F1403RD6 washer/dryer which is making a strange noise on it’s fastest spin 1400 it almost sounds like the drum is rubbing on the tub? i have balanced the machine using a level and have checked for play in the drum by lifting the front bottom edge of the drum and there doesn’t appear to be any play in it (i.e.Bearings) ? what is strange is it doesn’t appear to do it on the 1000 spin any advice would be well appreciated