The answer to 'how to clean steam cleaner' is to regularly clean and maintain your steam cleaner to keep it working effectively. This includes emptying the water tank, cleaning the hose and attachments, and descaling the internal components.
Start by unplugging the steam cleaner and letting it cool completely. Then empty any remaining water from the tank. Use a cloth or soft brush to wipe down the exterior, paying attention to the hose, wand, and any attachments. If the hose or attachments are clogged, you may need to soak them in a vinegar solution to help break down any built-up residue. Finally, run a descaling solution through the machine to remove mineral deposits that can affect the steam output.