At this point the maintenance method is to refer to the packaging machine instructions, adjust its sensitivity; In the Man-machine conversation interface, the tracking mode is switched to "Trace cut". Solid state broken electrical appliances burned, temperature control table damage, thermocouple damage temperature meter can not control the temperature, repair method is to replace the electric couple, replace the temperature control table (see the right picture), replace the heating body. Too fast, coating the inner layer of heat sealing is poor, the temperature is too low when the seal will leak or not firm, repair method is to slow down the speed, temperature, change the film material.