Yeah i suppose i should have added that lol. Was a strange one. I took the blower motor out and it was fine. Changed the pollen filter but it made no difference. Well during the week i managed to snap the green vacuum hose in top of the egr valve, never thought anything of it. Then i was told the climate control vacuum pipe comes of the same unit at the back of the inlet manifold. I blocked the green pipe off and the heater was blowing strong again. Bit unusual but there you go!