How to test a Solenoid?

Here we discuss how to test or activate a solenoid valve with an instrument air supply.

Solenoid valve inspection

  • The air supply is connected to the air filter regulator (AFR)
  • Set the required pressure in the AFR and connect the AFR’s outlet solenoid valve (SOV).
  • Then connect the solenoid’s outlet valve to a ball valve.
  • Connect a pressure gauge (test gauge) to the outlet of the solenoid valve.
  • The purpose of the test gauge is to check the pressure in the outlet line depending on the SOV g energy.
  • Ball valve used to stop functional inspection

Performance Testing Procedure:

A. Examine the datasheet/instrument nameplate provided by the manufacturer. Confirm solenoid valve voltage and current ratings

B. Confirm the solenoid valve port configuration (N.C. or N.0)

C. Connect the device as shown in the standard test setup above.

Apply the specified set pressure of air to the D valve’s inlet port. Example: connect the 24VDC solenoid valve terminals.

E. Then Turn on the 24VDC power supply (Here we connected 24VDC terminals) and monitor the test gauge pressure, and open the valve g. then you can see the increase of pressure value

F. Turn off the power and check that the valve has been de-energized and re-check the test gauge pressure (you can see the pressure drop)

G. List all the results in the check sheet.

How to test a Solenoid

As a human, nobody wants to deal with the frustration of searching for a problem of non-functioning solenoid. By following the steps below on how to test a solenoid, you can be sure that it’s working to the best of its ability and you can find the issue without taking much time.

Step 1: Locate the solenoid

You need to open the hood of your vehicle and find the engine. The starter and solenoid can be found here. You need to find the starter, which is a large cylinder with a small cylinder attached to it. This small cylinder has two terminals at each end.

Step 2: Homemade Test

Connect the battery to the wires that surround the solenoid valve, and then use a torch or lamp bulb to ensure that enough power is flowing through. The bulb, like the multimeter, should light up, and if the valve is working, it should also open.

You can also use an ohmmeter to perform this test, looking for anything less than 3.4 ohms.

Step 3: Multimeter


The fastest way to test a solenoid valve is to apply a direct charge. Two wires run directly over the valve as it sits on the timer, which you can test with a multimeter. It should send a charge to the valve, and if everything is normal, it should open. If you want to ensure that enough power is being applied to the valve, place a lamp or torch bulb on the wires while the multimeter is turned on. A sufficient charge will light the bulb. If the voltage is correct but the valve does not open, you must remove and replace the entire solenoid valve.

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