There is a gate controlling internal/external air intake

來源: biglow 於 2010-01-17 12:53:04 [檔案] [博客] [舊帖] [給我悄悄話] 閱讀數 : (261 bytes)

回答: Air duct leak 由 biglow 於 2010-01-17 12:35:00

When it is internal, it shuts off the air from outside. However, since it is a gate, it is not a sealed valve. That means a small gap between gate and duct is always present. That is why even at internal circulation mode you will still have water dripping.