If it’s only the outer shell cracked then basically it’s trim,and therefore doesn’t affect the functional integrity of the appliance. try aralditing the component.clean thoroughly with meths,cottonbuds/tissue etc. araldite will NOT bond to dirty/greasy surfaces.also, more is NOT better. a thin coating to the cracked edges,draw them together(tape/elastic bands/string etc. allow to harden 24 hrs. most plastic parts can be reclaimed like this. as this is a recurring prob. I suspect that the moulding is a duff design with built -in tension stresses that cause it to split but the cynic says they’ll never admit it you clumsy,heavy-handed door-slammer, you!