Rain sensor problem

When I turn on the rain sensor, the wipers are constantly working in the fastest position. The windshield has changed once. I researched a little bit from the internet about things like gel pads etc. Today, I took it to a glazier in the industry. Now it is better than before, but it still works despite the lack of water in the glass. What could be the problem? sckn22 2015-12-14 14:04:54

teacher in the forum, a friend had this type of problem in 206 das. Of course, I said I would add the difference of your vehicles in terms of executing ideas.

I do not have such a piece, I was careful when I was removing my teacher, the sensor had something like a pad attached to the glass.

Brother, I sent you a special message.