advice on steam leaking from arm on Krups 963/B

We've had a small Krups capuccino/milk-steamer unit 963/B for about 6 months, using it twice a day. Recently, it began to leak a little steam from the frothing nozzle, no matter how tightly the knob is turned shut. Is this a common problem, and is there any way to stop it? Thanks Tim
Reply to
Tim

DrinksForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.