What should I do if the filling cylinder of the hose sealer does not work? Don't worry, try the following three points: First, check if the cylinder is stuck. 2. Check the control circuit or the airway for damage. Third, check whether the five control channels have problems (electromagnetic five-way circuit bad contact, gas, etc.). After these three points of investigation, you can definitely solve the problem. If you encounter problems related to the hose sealer, please leave a message to us. At the same time, it is strongly recommended to purchase Hualian's Tube Filling And Sealing Machine. The quality is stable and stable. After 30 years of old factory, the quality is reliable. Tube Filling And Sealing Machine product introduction: https://www.hlyj.net/Products/73/