Front loaders leak for various obvious reasons. Close inspection is the key.
1. A tear in the door boot. This should be easy to spot.
Samsung Door Boot
2. Leaking internal hoses - often part of the complex fill system. Remove the top and inspect.
Any Hose May Leak From Vibration
3. Over sudsing and leaking from the overflow hose in the back.
Using Non He Soap
4. Main seal between the two halves of the outer tub. This is quite rare.
