lindam1510 said:thanks but i have to turn heating off and its impossible to sleep with it on
I have a problem keeping cool enough at night to be able to sleep! I fully open the window! My heating has not been on ( officially ) for about five months!
It certainly sounds to me as if the auto air vent has not been left open. If you are a little clever you might be able to check it. It should be just loose but NOT tight !
Anyone having one "mate" who is a heating engineer is prety unusual. Having FIVE is decidedly odd!
Tony