Neglecting washing machine maintenance can significantly impact its longevity. Over time, dirt, grime, and soap residue can build up inside the machine, leading to mold and mildew growth. This buildup can cause unpleasant odors in your laundry and potentially damage the internal components of the washer. Additionally, neglecting maintenance may result in clogged filters or drains, reducing the efficiency of the machine and potentially leading to costly repairs or even premature breakdowns.