How do I replace the washer on my IKEA single lever tap?

I've an IKEA single lever tap which after about a year of use has developed a constant drip!

I can't see any way in to replace the washer - theres a blue/red stud on the front which doesn't appear to be removable, but otherwise, no visible screws or way to remove the handle.
Neil, November 2005


done
We had a similar issue with our BAGVIK kitchen mixer tap and IKEA told us the problem was so rare that they came out and replaced the whole tap within a couple of days. This tap had quite a few washers and they didn't even worry about replacing them - just replaced the whole tap!

Andy, April 2006
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