Hello!
Ive just bought my a new (old) 850 replaced the radiator, because the oilcooler was broken..

After replacing the radiator, filled up with coolant, and waited for the car to heat up, but the fan didn't start up.... I tried replacing the water temp sensor, and the relay is working fine.

Ive tested the relay by grounding the 2 pins in the middle..

So now i don't know what to do...

Anyone tried this before?