LE1 fault code on Samsung eco bubble 5 years old ?

[Happychappy1971]

Hi we have a Samsung eco bubble model WF80F5E5u4w.It’s been throwing LE1 fault code can anyone shed some light into the fault please. Internet says water leak but no leak .I did blow the air tube through to the drum as it seemed blocked code blocked air tube throw LE1 fault code ? . I was wondering if the whole tube that goes from the drum to the pipe then micro switch needed cleaning ?.many thanks