I've used the power freeze option once or twice now and it has returned to normal freeze after a while. When I used it a couple of days ago I discovered it was still on power freeze yesterday. I think I clicked Save after setting it - is this why it hadn't automatically returned to normal? I'm used to an LG where fast freeze, once selected, would just run for a few hours until the freezer had returned to the required temperature. I checked the FH manual and the options aren't clear. I want to be able to set the power freeze and have it automatically switch off when the freezer is cool enough. Can anyone advise, please?