In case of damage, such as torn diaphragm for pilot solenoid valves, replace the affected part. If you find the pressure to be too low for the valve, consider replacing it with one whose pressure requirement matches that of the system.Ĥ) Damaged, Dirty valve seat or seal, and Missing componentĬlean the affected part to remove the dirt causing the component to jam. Pilot operated valves require certain minimum pressures to work. Check to see that the pressure across the ports does not exceed or go below that levels specified by the manufacturer. Solenoid valves have different pressure specifications. Higher than that, and you may end up with a damaged valve. A 110- 120V solenoid valve should be used with a corresponding power supply. It can be a 12V solenoid valve or 24- volt solenoid valve DC and the wrong power supply could cause damage to the valve circuitry and coil.ĪC voltages also vary from one solenoid valve to another. If it proves hard to pull, the coil is creating a magnetic field and, therefore, lasing current.įor incorrect voltage, check to see that the supply matches the manufacturer specifications. You may also pull the coil slightly to feel if there’s a magnetic force acting on it.
This should help you determine if the coil is working or not. Measure the voltage across the coil using a voltmeter. That’s because failure of the valve to open can have different causes depending on the kind of valve. It could be a normally open or normally closed solenoid valve.Īlso, if it’s a directing acting or pilot operated type. Before attempting to fix the problem, determine the type of solenoid valve you have.
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