HI I have a xtype 3lt V8 saloon,1952,awd, the tempature gauge is going up to 3/4 and the fan is not kicking in, just had the relay switch checked, that is fine, any ideas on the next step to check, the bloke at the electric garage suggested the radiator switch!!!!

 

This is your fan control module. It is a very common problem with this car. I just by passed this whole system and installed my own fan switch under the dash which controls my drivers side fan