I just found out that it depend on the ice bucket.
If the ice bucket is not full, the freezer temp will be set to -28C (-18F).
If the ice bucket is full, the freezer temp will be at the user setting.
I don't like this function, Can I disable this? I want my freezer to be set at my preferred temp.
I mean while it still producing ice, not ice off. It may producing at a slower rate, that OK.