I felt water a few times last winter and had condensation issues.My wife, said about feeling water and air coming from that area a few times, the first time was about 4 years ago!
I honest thought she was talking shit. Anyway, I had a look at my one yesterday, and after seeing this post and guess what?
The two plastic washers had come apart and out of the rubber boot!!!
Bloody fiddly getting the thing in, but glad it's back. Thanks for the heads up.
Happy you sorted yours too.