The repair man took the front panel including door off.Which means removing the rubber seal held in place with a round wire that tightens up, to access the filter tube (RHS like a hoover tube), clamped it higher up & removed the stuff. But I guess unless you know what you're doing, maybe the front panel might be a bit tricky. Good luck anyway. It cost me £40, which i didn't think was too bad.
Judith, March 2009