Samsung Ecobubble strange sound

[Conkie77]

My Samsung Ecobubble has started marking a really strange noise that’s hard to describe. It is washing clothes and spinning fine. No error codes. Drum moves smoothly and noise free when empty and hand rotated. The sound stops every so often (while drum is still spinning) and then disappears around 30 mins into the cycle. I’m thinking it is something to do with the Ecobubble air? 

[IamJai]

I can not view the video can you describe what's happening

[IamJai]

Might be the Ecobubble generator or clothes tumbling

[IamJai]

What model is it?

[Conkie77]

It’s WD12F9C9U4W/EU - the drum since posting stopped spinning. I’ve had a local company come fix that issue - a board needed replacing (the second one in 6 months on a 2 year old machine). Worked great for 3 washes, no weird Ecobubble sound.... but it’s back. It’s like a machine gun / popcorn popping sound - only when Ecobubble starts up in the wash cycle - I’m so fed up with this machine. 

[Conkie77]

[Conkie77]