Take the tank out and check that the (usually)black rubber ring (seal) is fitted to the tube on the back of the tank,if not turn the appliance off and pull the plug out(very important) and stick your finger in the hole where the tube plugs into and make sure it is clear.Don't know what machine it is but most work on same principal,tube,rubber seal,plug in no leak!Try that first.
anon
February 2010