Beats me then, as the ECU reads the thermistor and then switches the fans at the pre programmed settings, with the Fans are always Live with the Earth switched by the ECU

Could it be a faulty thermistor then?

could be as there nowt to say the 998 one I have is working correctly. No spare so it will have to stay as it is for now.

Pretty much the same as the one in the front cylinder rocker cover of a class A bike, think its a WTS09 or something like that