Lg Wm 14316Fd Making Noise

Hi, My washing machine (a direct drive) has started to make an unusual noise. It is just over 5 years old and have had no problems with it at apart from smelling damp occasionally. Yesterday noticed that it was making a noise which I can only describe as 'crackling'. The noise happens when it is on the wash cycle was stopping when the drum moved - as though it was only making this noise as it moved through its program but it is everytime the drum stops or not filling or spinning.

I decided to do some exclusion tests, it happens on 'rinse only' so assume its not the heater, doesn't happen on drain, but does happen on a 'cold' wash. I have checked the drain/filter and there was nothing in this.

I have a load in now and noise is still happening but also noticed it is doing it now for part of the drum turning on a wash cycle but i may have missed that last night. The noise was happening for part of the rinse cycle until it spin after the first rinse and seems to now have stopped.

The only other thing I have noticed yesterday is that my washing usually comes out slightly warm but last night was cold. There is no excessive noise when spinning, but did a little walk about 2 weeks ago but not since

The washer does between 7 and 10 loads a week not usually spread out. I have recently changed from drawer tablets to powder and changed make of conditioner too.

Please can you offer any advice as to what may be the problem?