RS8000 force defrost?

[Bongo99]

I have an RS8000 Fridge Freezer (specifically RS68N8230S9). It's started making a loud noise that I believe is caused by an ice build up. I would like to Force Defrost to try to clear the issue, but I can't find the correct button combination to do this. Found lots of useful info for other models on Youtube, but I can't get any of them to work with my model. Can anyone help?

Spent an hour online with Samsung chat, who denied that such a function (or even a diagnostic mode, which I found myself) exists on this unit, which I find hard to believe, and then tried to sell me a repair...

Thanks in advance!

[AndrewL]

@Bongo99: I have taken a look into this for you, and wasn't able to find any references to a defrost function. In this instance, your best bet is to unplug the appliance at the wall and allow it to defrost in this manner. Please ensure to have plenty of towels ready to lay down around the base of the unit, to soak up any water that might spill out as a result of the defrosting process. 

[Stephen Coote]

Hi Bongo99.

Just wondering if this solved the problem. We have the same issue with this model.