Update....
replaced both contactors and no different so I sent it off for repair to Les Ford via ebay.. turns our that the "Encapsulated PCB Transformer" had blown. Very cheap to buy and looks quite simple to replace so I hope this helps someone in the future, thanks Quizzy..
fan runs fine, but thats all, worked ok yesterday, just started tacking up a job and it stopped...
Any body got any idea's, checked all the obvious, gun connection, gun switch, is it the board gone?