I think you need to ensure that the water container is securely fixed in place as I had a similar problem After ensuring that the water container was secure on each occasion I have had no further trouble
I hope this works as it has for me
BillT
July 2013
hi
the same has happened to mine GV9461 ( the one with a hood on it - ) I've had it just over 2 years . and paid nearly £200 for it - I don't think its good value for money lasting 2 years , the red light comes on , tank is full and I have to re-press it to start it up again ( heat Up ) . there was a bang & water started dripping from the bottom . I did read in another blog that it was the steam valve gone not sure if can re repaired trying to find blog again
Sue
July 2013
Automatic Answer
While you wait for answers, we may have found some information which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix steam irons.