Solenoid valve faults and troubleshooting

Solenoid valve faults and troubleshooting:

First, the solenoid valve does not work after power on

Check whether the power wiring is bad→Reconnect the wiring and the connection of the connector Check whether the power supply voltage is in the working range ± Adjust the normal position Range Coil is not soldered → Re-soldering the coil short circuit → Change coil working pressure difference is not appropriate → Adjust the pressure difference → or replace the appropriate solenoid valve fluid temperature is too high → replace the solenoid valve has impurities to make the solenoid valve's main spool and moving iron core stuck → cleaning, if the seal is damaged, replace the seal and install the filter liquid viscosity is too large, high frequency and life has come to replace the product <br> <br> → Second, the solenoid valve can not be closed

The main spool or iron core seal is damaged → replace the seal fluid temperature, viscosity is too high → replace the solenoid valve of the counterpart impurities into the solenoid valve spool or moving core → cleaning spring life is reached or deformed → → replacement orifice clogging cleaned Kong Pingheng operating frequency is too high or has worn → product or update product election <br> <br> three, otherwise

Internal leakage → Check if the seal is damaged, if the spring is not assembled properly. Leakage → Loose connections or defective seals → Tighten screws or replace the seals Noise during power-on → Loose pieces on the head, tighten. The voltage fluctuation is not within the permissible range and the voltage is adjusted. Core suction surface impurities or uneven, timely cleaning or replacement.