1. The solenoid valve does not work after being energized.
Check if the power wiring is bad → Rewire and connect the connector
Check whether the power supply voltage is within the ± working range - → adjust to the normal position range
Is the coil desoldered → re-soldering
Coil short circuit→replace coil
Is the working pressure difference inappropriate → adjust the pressure difference → or replace the appropriate solenoid valve
Fluid temperature is too high → Replace appropriate solenoid valve
There are impurities that make the main valve core and moving iron core of the solenoid valve stuck → clean them. If the seal is damaged, replace the seal and install a filter.
The liquid viscosity is too high, the frequency is too high and the service life has expired → Replace the product
2. The solenoid valve cannot be closed
The seal of the main valve core or the actuator is damaged → replace the seal
Whether the fluid temperature and viscosity are too high → Replace the corresponding solenoid valve
If impurities enter the solenoid valve core or moving iron core → clean it
Spring life has expired or is deformed → replace
The orifice balance hole is clogged → clean it in time
The working frequency is too high or the lifespan has expired→Change the product or update the product
3. Other situations
Internal leakage → Check whether the seal is damaged and whether the spring is poorly assembled
External leakage→The connection is loose or the seal is broken→Tighten the screws or replace the seal
There is noise when power is turned on → The fasteners on the head are loose, tighten them. The voltage fluctuation is not within the allowable range. Adjust the voltage. If the core suction surface has impurities or is uneven, clean or replace it in time.
