"ODB" wrote in message
...
Its only a year old, a nice stainless steel number.

Ive tried tightening to screw in the removable lid, but to no avail.

Perhaps Ive tightened it too hard?

Any ideas on this earth shattering problem?

The sound is made by steam passing through the whistle opening. Be sure it
is clear and did not get filled with some gunk. Clean it out with a pin or
paperclip and give it a try. Also check that it is fitting properly and the
steam is not escaping around the lid rather than through it.