take off the top of machine to expose the hoses,now unclip/unscrew the large hose where it attached to the bottom of soap draw,now unclip/unscrew the other end of hose where it attaches to the outer drum, clean out all the caked powder or even undissolved hard tablets ?then refit and tighten hose, run a fill with lid off to test for leaks if ok refit the lid top.
wirecutterman, December 2010