How can I remove the programme knob from Whirlpool AWM 5145/2?

This washing machine keeps stopping mid programme and requires intervention to turn it very slightly towards the next programme to get it going again. I suspect the knob maybe clogged up with something but I can't see an obvious way to remove it for inspection...It's a Whirlpool AWM 5145/2 1400 Speed spin AA rated.
Cheers
James, December 2005


done
Cheers Tony..How do I test that then?? Do you know how to get the knob off without breaking it? I'm convinced it will be full of dog hairs!!

James, January 2006
if it keeps stopping i would check the heat element first as this will cause it to pause through cycle

tony, January 2006
link Click here to see other fixes for Whirlpool 1400.