My emergency flasher come on several times a day. why? on 2003 BMW 325i

the flashers just come on for no reason, several times a day. what causes this?

Asked by for the 2003 BMW 325i
sounds like you have short or a bad flasher I would change the flasher it would be the cheapest place to start
thanks. is there a way to get into the flasher switch area to clean it. I think my grandson spilled liquid on it