Technical Fiat Punto Grande 2008 Radiator fan always on while engine is running

[Graham7]

I have a Fiat Punto Grande 2008 1.4 . When I start the engine, after maybe 3 seconds the radiator fan comes on, and stays on. Can anyone help?

 

[GrandePunto PL]

Search before starting another thread like that!
https://www.fiatforum.com/threads/grande-punto-faqs.424410/ First one (electrical issues, main earth etc.).
Common problem in all brands: https://www.google.com/search?q=grande+fan+stays+on