NOZZLE BLOCKED PROBLEMThis problem cannot be solved by replacing the filter screen. At present, the filter screen hole is less than 3mm and the nozzle hole is 5.7mm. The main reason for this problem is that a large amount of loose fibre accumulated in the automtic filter is not discharged in time.1. Check whether the filter blade is damaged. 2. To prolong the time of discharging valve, it is better to discharge water directly from discharging valve of automatic filter to solve this problem.pls inform customer to check & try to discharge the water from automatic filter valve.