Wiper motor problem?

Guys, the wiper timer and boiler of my vehicle were not working today, I had them done and as I saw on the site, water had entered the wiper motor, but thankfully this was not the problem. & Nbsp; We opened the drainage channel, the electrician said, "If this is the case again, water enters here again & nbsp; the engine burns out"

There is no photo right now, but the owners of the 306 know that the part of the wiper motor is & nbsp; , we will block foreign materials entering here and closing the channel & nbsp; Can't we put something like a strainer? Reviews

Image is stolen