If required, replace the defective components. Dirt in the armature cause restriction in the plunger movement.ģ. Check the valve specifications in its manual.ģ. Reduce the differential pressure by reducing the inlet pressure.ĭifferential pressure too low 1. Check whether the valve needs differential pressure for its operation.ģ. Check whether the pressure is within the limit as specified in the control valve manual.Ģ. If there is variation in supply voltage or frequency, check the supply system & increase the voltage.ĭifferential pressure too high 1. Measure the voltage & Frequency with a multimeter.Ĥ. The combined supply & voltage variation in the range of +/- 5 %.ģ. Coil accepts the voltage within the range of +/-10 % supply voltage variation from it rated supply voltage.Ģ. fuses Voltage/ frequency not as per the coil’s rated electrical parameters 1. If the coil does not receive the supplyĬ.

Do not completely remove the coil when supply is available at coil terminals. If not open, lift the coil slightly to check its magnetic force.Ĥ. If OK, check whether the valve is in open or closed conditionģ. Check the supply at the solenoid valve terminals.Ģ. Solenoid Valve Problems & Solutions Problem-Solenoid valve does not open Possible Cause Solution No power supply on solenoid valve coil 1. The major problems of solenoid valve are Coil burnt out, power supply problem, damaged seal, dirt particles in components & flow, and pressure problems. In this post, we will discuss the solenoid valve problems & solutions.

12 volt electric solenoid valve