I managed to get mine fixed. I removed and checked the pump and it was ok. I removed the condenser and found that the channel between the condenser and the pump container was blocked by a loose screw, which had collected fluff, lint etc. You cannot actually see this - I had to put my hand into the space where the condenser sits, and at the back, out of sight is the channel, which is very small. When I cleaned that out water then filled up the pump container.
Robert Macdonald, January 2008