Some units appeared to have an issue with surface prep and may have had a second plating...Originally Posted by 7D757C726565627E100 link=1284120065/0#0 date=1284120065
If yours is a few years old... Doubt any ability for a warranty claim and is in most cases - a cosmetic issue only. *Secondly if a few years old, the collar may be needing replacement any way.
If you do it, then look for the guide that was posted on cs a week or so ago.
If the steam is just excess pressure and not the pump still running.. Then scale is building up on the valve seat. *This happens with all systems to some extent. *There are pluses in this *;) *Means when ya finish steaming, it will slowly stop and ensure you do not suck milk back up the line.
Also suggests that YOU should be looking to replace or recharge the anti calk filter ASAP. *Only good for a limited time and location and water quality can play a big part in how often you should do it. *I recommend re charging every 8 to 10 weeks.
Remember the de-scale and back flush does not do the steam path, so my guess is you have a scale build up in the steam thermoblock and steam path way / lines.
Do not rush out and de-scale the steam as per other posts etc unless your prepaired for some real work. Because if you lift a big chunk it could block the steam pump... Which over time it will if you DO NOT MAKE SURE YOUR WATER is good and the ANTY-Calk filter is kept fresh and working...
But I would think about taking the valve shaft out and cleaning and do a re-lube / o-ring replacement if you feel it is needed.