There are many reasons for valve failure

　　The Fountain Solenoid Valve will malfunction and stop working at some point in its life. There are many reasons for valve failure, including dust ingress, damage, wear, maintenance errors, or just solenoid valves that are not suitable for the current application.

　　Before you start troubleshooting, here are some preliminary key indicators:

　　If the valve never works-this may indicate that the valve specification is incorrect for the application. That is, the wrong pressure, type or voltage, etc., is not installed correctly or is damaged.

　　Please check all specifications with the solenoid valve supplier.

　　If the valve has worked before-this may indicate that some system changes have affected the valve, or debris has entered the interior, so some simple valve maintenance will bring the valve back online and work normally.

　　Please contact the solenoid valve supplier before purchasing any spare parts.

　　The solenoid valve opens only slightly

　　Dirt under the diaphragm enters

　　Clean the diaphragm/piston seal and replace it if damaged. Please refer to the spare parts list and maybe install a Y-filter upstream.

　　Low pressure

　　Check whether the inlet/outlet pressure difference (difference value) meets the valve specifications. If the valve position is too low, it needs to be replaced with a 0-rated version. Remember that the downstream side will rise to a higher tank or system, so it should also be subtracted from the supply side pressure. Other system requirements may also reduce overall supply pressure and further reduce variance.

　　Damaged or bent armature tube

　　Replace the tube. See available spare parts.

　　corrosion

　　Replace damaged components and check the compatibility of the valve with the medium. Do not use EPDM seals on grease, as they will swell and restrict flow. Call the technical support hotline or soak the seal overnight to see if the seal has expanded

　　Missing components after maintenance

　　Replace parts according to the spare parts list.

　　The solenoid valve cannot be opened

　　electricity failure

　　Check whether the valve is normally closed (power on) or normally open (power off). Use a magnetic detector to lift the coil slightly to check if there is a magnetic field. Do not remove the coil IT WILL BURN OUT if it is energized. Check the contact. Check the wire connection and DIN connector. Check the fuse.

　　Voltage error

　　Check that the power supply voltage marked on the coil is correct, usually check the voltage tolerance +/- 10%, but please refer to the solenoid valve catalog. The working principle of some coils is to generate a surge condition to open the valve, please check whether your power supply meets the coil current requirements. Most of the cable plugs of the Glass Tube Rotameter have an IP65 degree of protection. Ensure that the cable gland and the cable diameter match, the plug connection screws are tightened correctly, and the cable is allowed to fall under the cable gland to prevent water droplets from entering

　　Coil burnt out

　　See the burnt part of the coil

　　Pressure-too high

　　Check the rated power of the coil, a higher power version may be required. Reduce the inlet pressure according to the valve specifications shown in the solenoid valve catalog.

　　Pressure-too low

　　Check whether the inlet/outlet pressure difference (difference) meets the design conditions of the valve. If the valve position is too low, it needs to be replaced with a 0-rated version. Remember that the downstream side will rise to a higher tank or system, so it should also be subtracted from the supply side pressure. Other system requirements may also reduce overall supply pressure and further reduce variance.

　　Damaged armature tube

　　Replace the armature tube. Please refer to the spare parts list.

　　Dirt enters the armature tube

　　Clean the valve armature or replace it. A filter can be used to filter out suspended dust particles. Please always install the valve upright to reduce the wear on the top of the solenoid armature when any dust enters the medium. If a hard scale accumulates, please install a water softener or dry armature valve, otherwise please install a Y-type filter to filter out suspended particles.

　　corrosion

　　Replace damaged components and check the compatibility of the valve with the medium. Is the armature dented due to cleaning or dosing liquid? Certain acids will corrode the 430F stainless steel armature, which has corrosion resistance but is not guaranteed to withstand all fluids.

　　Missing components after maintenance

　　Replace parts according to the spare parts list.