Perhaps try a better antiperspirant or throw the machine away because dead ants might be inside it or worse a rat. Perhaps the heater on the machine isnt working so its only washing smelly socks , sweaty clothes in cold water.
Or check someone in your house is not swapping the fabric conditioner for something more sinister. You can check this by hiding in the pot and pan cupboard until the culprit arrives and you can catch them in the act. Or if you dont have much spare time take the new softner and washing powder with you wherever you go.
stupid stuart, November 2008