How to test a water solenoid valve?

If the water solenoid valve is not operating correctly, such as not opening or closing, leaking, or overheating, these are signs there may be a problem, such as a wiring issue. A water Solenoid valve can be tested with a multimeter by following these steps:

1. Set the multimeter to ‘ohms’ (Ω) to test for continuity.
2. Touch the multimeter’s black lead to the negative (-) terminal of the solenoid valve, and the red lead to the positive (+) terminal. These will be metal pins or spade connectors used for wiring. If there are 3, the smallest will be used to ground the circuit.
3. Connect the solenoid to power source, such as a battery and apply the current. Once the current is flowing through the circuit, you should hear a click of the solenoid valve moving. If you don’t hear this, the solenoid coil isn’t working properly and needs replacing.
4. If you did hear the click, then check the continuity reading on the multimeter display. You should have a low ohm reading between 0 and 1. Any other reading indicates that the solenoid needs replacing.