Temp light coming on too early...engine barely warm

What is your question?

Car is actually 1991 Alfa 164 3.0 v6. (not listed) I have a temp guage and a warning light. Previously, the light would come on at around 175 degrees. I had it checked. Had broken wire. Need relays but fan works. (fan doesn't come on until close to 200 degrees anyway) All of a sudden the light started to come on when guage is only at around 75-100. Engine is not overheating. Any ideas? (I'm thinking loose wire/bad sending unit)