Had this happen with my sons 306.turned out to be dirty blades on one of the large fuses( 40 or 60a) in the engine compartment fuse box,removed fuse (make sure you have the radio code)clean metal blades with some fine wet & dry,replace fuse.worth a try before you get into relays and sensors?Hope this helps,AlexI've got the same problem on my Clio 1.2 RT.
Direct power to the fan and it spins, a paperclip in the sensor and it doesn't.
Does my car have a relay for this? and where do I find it?
Or is there anything else that could be stopping the power getting to the fan.
i too have this problem and car also cuts out , any ideasDoes anyone know if there is a relay controlling the fan, Mine is not kicking in have checked fuse and its ok,have tried taking plug of sensor(rad) and wiring across the terminals in plug,but no joy,Any Ideas on relay,where it be