The answer to 'steam cleaner buildup' is that steam cleaners can develop mineral and soap residue buildup over time, which can reduce their effectiveness and even damage the machine. Common causes include using hard water, not properly emptying and cleaning the machine after each use, and using the wrong cleaning solutions.
Symptoms of steam cleaner buildup include reduced water flow, poor suction, and water leaks. To address this, you should first try a DIY cleaning by running a vinegar-water solution through the machine, then use a steam cleaner cleaning solution to break down any remaining buildup. If the problem persists, it may be time to call in a professional cleaning technician to fully inspect and service the machine.