The solenoid valve does not work after it is electrified
Check whether power wiring is bad, re wiring and connector connection.
Check whether the supply voltage is within the range of + - to normal location.
Whether or not the coils are removed and re welded
Coils short circuiting and changing coils
Is the working pressure difference inappropriate? Adjust the differential pressure to replace the equivalent solenoid valve.
The fluid temperature is too high to replace the proportionate solenoid valve
Impurities jam the main valve core and the moving iron core of the solenoid valve for cleaning, if the seal is damaged, replace the seal and install the filter
The viscosity of the liquid is too high, the frequency is too high, and the life has arrived.
The solenoid valve can not be shut down
Seal of main spool or iron core has been damaged. Replace seal.
If the fluid temperature and viscosity are too high, replace the counterpart solenoid valves.
The impurity enters the electromagnetic valve to produce the valve core or the moving iron core.
Spring life has been or deformed
Blockage of the balance hole of the throttle hole - cleaning in time
Working frequency is too high or life expectancy has changed.
