It's time to clean your washing machine! Even if it's not visibly dirty and grungy, this will help clean soap scum and mineral deposits in the pipes and hoses. You just need vinegar, bleach, and two wash cycles!
The Pinterest Project: DIY Front Loader Washing Machine Cleaner Use about 2 c. of white vinegar, split between the detergent dispenser of your machine and the rest into the basin. Turn the washing machine on to the "clean washer" setting. After that is done, sprinkle about 1/2 c. baking soda in the basin and run a regular wash cycle with hot water.