Applies to STM steamer (model ID: XTY001); STM 2 steamer (model ID: XTY002)
Please check the below solution to fix the issue.
Issue: The steam holes are jammed by incrustation.
Solution: Mix the vinegar with water (vinegar : water = 1 : 5). Put the liquid into the water tank and leave it in the tank for 10-15 mins, and then power on and steam the liquid.