Our Dyson Animal vacuum has plenty of suction when it is upright and the attachments are being used off the hose, but when the handle is tipped back to begin cleaning carpets the beater head is getting no suction. As the handle is being tipped back you can hear what sounds like a flapper valve in the body of the vacuum opening and then all the suction just goes away.
howtomendit.com for free repair help, information and advice.
