The grinding sound is the pump trying to evacuate water. Your outbound filter is clogged. Look to the bottom left of the front of the unit, open the little door. Watch some Youtube videos on how to clean it. Agree with others that Samsung appliances aren't great, but if you inherited them like I did, you might as well learn the simple fixes.
Thanks for the tip but I already checked the filter after phoning Samsung. I will check YouTube just in case I’ve not done it correctly though.
Personally I think some research suggests it might be the suspension of the drum which should be easy to replace but there is no need for that to ever fail, even after < a year. Sorry for the off topic chat everyone :-/
