There are several ways to inexpensively clean a washer. One of the most inexpensive ways to clean a washer is to fill up the unit with hot water and add a few cups of white distilled vinegar to it.
Once the vinegar and hot water have had a chance to sit in the machine for 15 to 20 minutes, a person can then set the washer to run a full cycle. This combination can remove dirt, grime and even hard to clean soap scum from the inside of the washer. To clean the outside, water and dish soap on a rag are all that is needed.