1. The solenoid valve coil is burned out. You can remove the solenoid valve wiring and measure it with a multimeter. If it is open, the solenoid valve coil will burn out. The reason is that the coil is wet, causing poor insulation and magnetic leakage, causing the current in the coil to be too large and burned.
Countermeasure: Therefore, prevent rainwater from entering the solenoid valve. In addition, the spring is too hard, the reaction force is too large, the number of coil turns is too small, and the suction force is not enough to cause the coil to burn out. During emergency treatment, the manual button on the coil can be turned from the “0” position to the “1” position during normal operation to make the valve open.
2, The solenoid valve terminal is loose or the wire head is off, the solenoid valve must not be electric, countermeasure: the wire head can be tightened.
3. The solenoid valve is stuck. The matching clearance between the slide sleeve and the spool of the solenoid valve supplied by Anhui Secco Environmental Technology is very small (less than 0.008mm), which is generally a single piece assembly. When mechanical impurities are brought in or the lubricant is too little, it is easy to get stuck. .
Countermeasure: Use steel wire to pierce through the small hole in the head to make it rebound. The fundamental solution is to remove the solenoid valve, take out the valve core and the valve core sleeve, and clean it with CCI4, so that the valve core can move flexibly in the valve sleeve. When disassembling, pay attention to the assembly sequence of each component and the location of the external wiring, so that the reassembly and wiring are correct. Also check whether the injection hole of the lubricator is blocked and whether the lubricant is sufficient.
4. Air leakage. Air leakage will cause insufficient air pressure, making it difficult to open and close the forced valve, due to damage to the sealing gasket or the wear of the slide valve, resulting in blow-by of several cavities.
Countermeasures: When dealing with the malfunction of the solenoid valve of the switching system, you should choose an appropriate time and wait for the solenoid valve to be dealt with when it is out of power. If the processing is not completed within a switching gap, you can suspend the switching system and finish processing.
