Solenoid valve failure and troubleshooting: First, the solenoid valve does not work after power Check the power supply connection is not good → re-wiring and connector connection Check the power supply voltage is within ± working range → → adjust the normal range of the coil is not desoldering → re-welding Coil short circuit → replace the coil working pressure is not appropriate → adjust the pressure difference → or replace the solenoid valve is proportional fluid temperature is too high → replacement of the solenoid valve has impurities to electromagnetic valve so that the main valve core and moving core cleaning → cleaning , If the seal is damaged, replace the seal and install the filter Liquid viscosity is too high, the frequency is too high and life has been to → replace the product Second, the solenoid valve can not close the main spool or iron core seal has been damaged → replace the seal fluid Temperature, viscosity is too high → Replace the opposite port of the solenoid valve has impurities into the valve spool or moving core → cleaning spring has reached or deformed life → replace the orifice balance hole blocked → timely cleaning work frequency is too high or life Has been to → re-election products or update the product Third, the leakage in other cases → Check the seals are damaged, the spring assembly is poor External leakage → Or loose contact at the seal has been broken → screws or fasteners replace the head of the noise → loosening the seal is energized, tighten. Voltage fluctuation is not within the allowable range, adjust the voltage. Core suction surface impurities or uneven, timely cleaning or replacement.
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