Failure and elimination of the air conditioner electromagnetic directional valve
1. The coil of electromagnetic directional valve has a open circuit, short circuit or burn, the valve core can not be sucked, or it will cause the slider not acting. Then you should replace it.
2. The solenoid valve's armature is stuck,then the valve core cannot move, causing the slider not acting. You can open the body to wash and adjust it.
3. When the power supply voltage is lower than the rated value of the electromagnetic valve, the import and export pressure difference is higher than the opening valve capacity, there ia often a noise"dadada" in the valve at this moment, causing the valve core cannot suck together. You should improve the power supply.
4. The solenoid valve is installed upside down, causing the valve core not acting.You should adjust the flow direction.
5. The system has high temperature, high pressure and machine contains impurities, causing the slider deformed, jammed. They should be replaced as well.
6. Remanent magnetization absorbs the valve core or the valve core is jammed, the electromagnetic valve cannot be closed when the power is cut off. Clean and adjust it, if there is no effect,then change it.
7.The electromagnetic valve seal is damaged or the tighten screw gets loose, causing the refrigerant leaks out. Change the gasket and tighten the screws.
8. Valve on capillary is blocked or fractured; Or the system has a serious leakage,causing the slider not acting. Clean the capillary or using the slightly rough fracture copper pipe to weld.
9. The memory has dirt, the needle valve seat or valve is damaged and the spring force is too small, causing the electromagnetic valve not well-closed. Clean and adjust or replace the spring.
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