Fiat Doblo motor failure

Hello, those fans have two speeds in the radiator sensor or check that it can have a resistance that regulates the first speed, you can try if the fan starts direct can also be the fan connector that is defective, greetings Alfredo.-

Hi Alfredo! I already changed the sensor and does the same. Try the fan connected directly to 12V and the same thing happens to me. Can it be that the radiator is obstructed? But on the other hand it heats a lot (that is, normal) and the chivato of the temperature does not turn on. Any idea what can be?
all the best! Patxi
p ps to the fan and the two speeds and the relays are fine. What I am going to verify is the continuity between the sensor and the switchboard and the relays and the switchboard.

Hello, it is the two water hoses that leave the radiator dben to be at the same temperature because if they are different it is possible that what you have is the thermostat blocked and the water does not circulate and that produces that you do not turn on the fans. Vetilers or light the air conditioning and also had to start, do these tests and let me know greetings Alfredo.-

Hi Alfredo! The thermostat and what I had because I had doubts that it does not open enough, and the fan triggers with the air conditioning. I even have the car test with the fan at maximum speed. I the engine stops the same. The week that will take it to plug the computer see what you find when it goes out. Safe! Patxi
ps
tomorrow I will also try with the liquidis of cleaning the refrigeration circuit (although I have doubts of serious this)

Hi Alfredo! I feel that I have not answered so much time ... in short, take the van to the official service and it turned out to be the single of the revolutions of the ciguñieal.me cost 86 euros with the labor included .. with the temperature changed the resistance and of there the problem ... anyway thanks for the help.