I think I will have to, I'm stumpt. On watching the engine temp from the led display it goes from between 90-100c then suddenly dropped to 13c then 0c which caused the fan to come on and put the engine warning light back on.
Thanks for the quick reply gents, just checked and there is pressure in the hose. Also had checked to find any faults by holding the reset button for miles etc when the ignition is off and then turning back on which has shown no faults. the only thing that has changed is the engine warning light has now disappeared. I thought it may be a faulty thermometer. Just trying to rule out a few issues before paying a lot of money at my local dealer.