thanks for all the replies, nope not having any kind of problem, just wondering when the fan should kick in? and coime to think of it when the air con is on and come to a standstill and switch off i can hear what must be the fan, so will take a look whilst air con is on too.....the sweaty pipes yup you gusy are right, we have 50% humidity on the day and i suppose the iced glass in a hot day analogy is what happened, thanks again