The answer to 'why is my steam cleaner discolored' is that steam cleaners can sometimes become discolored over time due to a buildup of mineral deposits, hard water, or chemical residue. This discoloration is usually harmless, but it can make the steam cleaner look unsightly.
Some common causes of steam cleaner discoloration include using tap water with high mineral content, not properly rinsing the machine after use, or using harsh cleaning chemicals. Over time, these substances can leave behind a film or residue that causes the machine to look stained or discolored. In most cases, this discoloration is just a cosmetic issue and doesn't affect the performance of the steam cleaner.