How often should I clean the inside of my washer, and how do I do it?

The Washer Maintenance Procedure should be performed at a minimum once per month or every 30 wash cycles, whichever occurs sooner. To clean the inside, add 1 cup (236 mL) of liquid chlorine bleach to the empty wash basket, close the lid, select the Heavy Duty cycle, and press Start without adding any detergent or other chemicals. Do not interrupt the cycle. (Page 6)