My washing machine fills with water, goes through a wash cycle, then won't drain. I have taken the waste pipe off the U-bend from the sink & when l do this & lower the level of the pipe, it drains out slowly, but not all the water comes out. I don't think there's a blockage in the pipe.

Aneel, August 2008

not emptying water points to a filter or drain pump problem find and clean the filter and check /strip drain pump
basically clean all pipes from the start of the sump drain hose through to the drain u bend and LASTLY remember to CLEAR THE HOLE that the drain hose connects to (stand pipe is better due to better flow capacity a new drain pump maybe required

wirecutterman, August 2008