Like the previous reply said, it is very often the sump. A clear/white plastic box behind the kick plate and then behind another metal cover (3 screws). It fills up with greasy slime which I clean out with a skewer and hot water. I've needed to do this roughly every 4 years on my old global 300. Just a note, to replace it after cleaning, make sure the black O-ring is on the plastic sump box before reinserting it. It may still be in the recess that you pulled it out of. Reattach the small hose and push it in until the mating tab clicks home.
Ben, May 2012