Sealing doors and windows are mostly poor or gas or water level switch is damaged and the road is blocked, resulting in abnormal pressure caused the water level switch. Check the water level switch normally and seal with debris, in addition, the reservoir water level switch to the main section of the chamber connected to the endotracheal water blocking. Because the machine is compact dense parts can not be removed to clear the entire root trachea, can only be removed during that connect the trachea level switch, set into a bicycle pump cheer, hit the water

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