Unforutanly as it seems, no one can help me with this issue. I guess the relay or thermostatic switch is stuffed.
I purchased a relay, wires and a switch today so I can turn on the fan if I have to. I had it all wired up correctly but the fucking thing wont go.
Don't know what i'm doing wrong... Im going for a walk and a beer at the pub, will post up how I wired it when I get back