How to Solve Common One-Way Solenoid Valve Faults?

As a common component, a one-way solenoid valve has its place in many devices, but everyone's purchased and used components, models, and effects are different, which also causes many users to be unable to use it in the end. This is also what needs to be explained in this issue. Some common problems are briefly shared, and I hope this is helpful to everyone.

1. Coil short circuit or break:

Test: first use a multimeter to measure its continuity and check whether its air-use 2-way 2-position solenoid valve model is suitable. After confirming, check the resistance; if the resistance is close to 0 or infinite, it indicates a short circuit or break in the coil. If its resistance is normal (about several tens of ohms), this does not mean it is good. Finally, use a small screwdriver, insert it into the solenoid, and then insert it into the solenoid; if it has magnetism, it indicates it is good, otherwise it is bad.

Solution: first use a multimeter to measure its continuity and replace the solenoid.

2. Problem with the plug/socket:

Fault phenomenon: if it has a plug/socket, it is very likely to be due to a problem with the plug and socket, the plug's connector, or the connection between the plug and the ground wire. It is recommended that everyone develop a good habit: fasten the fixing nut on the plug and socket.

If an LED power indicator is installed on the plug of a cylinder 5-position one-way solenoid valve, then when using a DC power supply to drive the solenoid valve, it acts immediately, otherwise the indicator will be on. In addition, when using power plugs with light-emitting diodes of different voltage levels, do not interchange them, otherwise the LED will be burned out/powered (replaced with a low-voltage level plug), or the LED will glow very weakly (replaced with a high-voltage level plug).

In the absence of a power indicator light, the solenoid valve coil cannot distinguish the difference in polarity.

Solution: solve the wiring error, repair or replace the plug, or use a socket 4V series solenoid valve coil.

3. Problem with the valve core:

Fault phenomenon: when the medium pressure in the solenoid valve is normal, press the red manual button on the solenoid valve, and the solenoid valve does not respond (the pressure medium is not switched on or off), which indicates there is a problem with the valve.

Solution: check whether there is accumulated water in the medium, for example, whether there is accumulated water in the compressed air (sometimes, the role of an oil mist lubricator filter is not very great, especially when the pipeline design is poor, and there will be a large amount of accumulated water in the compressed air entering the solenoid valve), and whether there are a large amount of impurities in the liquid medium. Then clean up the dirt in the solenoid valve and pipeline. If it still cannot be solved, repair or replace the valve core, or completely replace all the solenoid valves.