The holes in the nozzle of the steam tube are easily clogged with milk scales, causing the problem of small steam. Use a cleaning needle to clear the problem of clogging the steam tube.Does not output hot water:The machine is not heated or has no steam pressure, the output port is blocked or the valve body is blocked.No steam output:The steam nozzle is blocked, the water level is too high, the hot water is turned on or the water is drained, the boiler pressure is insufficient or there is no heating.Boiler full of water:The water inlet solenoid valve is not tightly closed or blocked, you need to open the valve body to clean or contact a technician.Air leakage from safety valve:The spring is weak and the safety valve needs to be replaced.Purchasing corresponding filtration and water softening equipment can help reduce the scale and blockage of the machine during long-term use.