To follow up on this, there _is_ a very faint hum at the same time.
I'll try and get at the pump and see if it is OK.


The faint hum is indicative of a motor problem, probably the main pump. the
kettle sound is probably the water heating up, you wouldn't notice this
normally as the water is spraying around the cabinet making more noise.

the problem isn't so much cost, it is getting hold of one and disassembling
the machine to replace it.

--
Ian Tilley
Ex-Kirklees Domestic Engineers
http://groups.yahoo.com/group/appliance-repair
it's free