Applies to STM steamer (model ID: XTY001); STM 2 steamer (model ID: XTY002)
There might be some noise and vibration when the water pump is working. It's normal.
If the "tak tak tak” sound is too loud, please ask the professional tech personnel to maintain it.
Please check if there is sufficient water in the water tank. If not sufficient, add some water to the tank.