F-05 is a draining error code.
What you need to do first is check the drain hose and were it drains out to.
If that's all ok then remove the plastic trim on the front at the bottom and see if theres a filter on the right hand side.
If so get a shallow dish under there and slacken the filter and drain the water out form there.
Once the water is out then fully remove the filter and clear any debris out.
Then look at the back of the filter chamber and there you will see the pump impeller X shape.
Check this isn't jammed up as well.
Once clear refit the filter and retry the washer and fingers crossed this will be fine.
But if you model doesn't have the filter you need to remove the back cover and take the black sump hose off the drum which goes to the pump and give this a good clean out.
But the F-05 error code is a draining fault.
If you need anymore info just get back to me.