It's not actually the washing machine, but the washing it washes that smells all fusty and stale. I've cleaned out the filter, cleaned the drawer of all crust and old powder etc. But the slot where the drawer slides in is pretty manky. I've tried to clean it as best I can but it's very awkward to get to.
I've also put the machine on empty but with powder and on a boil wash.
Anything else I can do? Should I get it serviced? Are there any products that exist like the dishwasher cleaners you can get but for washing machines? Help!