How to Test a Washing Machine Water Inlet Valve With a Multimeter
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The person typing how to test a washing machine water inlet valve with a multimeter wants to know whether a washer that does not fill with water has a failed inlet valve. An inlet valve is a solenoid with an electric coil, so a multimeter in ohms or continuity mode can check whether that coil has a complete path. This guide covers the steps, what an open reading means, and what the sources we opened do not say about your model’s valve.
Quick answer
- Unplug the washer and shut off the water supply before you disconnect any valve wire.
- Disconnect the valve’s electrical connector, set the meter to ohms or continuity, and touch the probes to the coil terminals.
- A complete path (a beep or a low reading) means the coil is not open. An OL or silent reading means the coil path is open.
- A coil that reads correctly does not prove the valve opens. Check the water flow and the control signal too.
Safety first
An inlet valve sits on the water side of the washer, and its coil and wiring connect to the control circuit, which runs on household power. The U.S. Consumer Product Safety Commission has recalled gas dryers over a short circuit in the wiring that could shock people, and its remedy told owners to unplug the appliance before anything else. Pull the washer’s plug and close the water supply valves before you touch the inlet valve.
Fluke’s guide to continuity testing says the test should be done on a de-energized circuit: “With the circuit de-energized, connect the test leads across the component being tested.” Do not connect the meter’s resistance or continuity function to a powered valve.
If the valve is wet with water near live wiring, or the water supply is pressurized and you cannot shut it off, stop and call a licensed plumber or appliance technician. Outlet and breaker work is for a licensed electrician.
What the coil reading tells you
An inlet valve uses an electric coil. When the control board energizes it, the coil opens the water path. Fluke defines continuity as “the presence of a complete path for current flow,” and describes a continuity test as sending “a small current through the circuit to measure resistance.” A coil that has a complete path shows a low resistance and may beep in continuity mode. A coil with a break inside shows OL or stays silent.
A coil that is open cannot open the valve, so an open reading is a clear sign of failure. A coil that reads a complete path is not proof that the valve opens or closes fully, because the valve’s mechanical parts, screen, and water pressure also matter. The sources we opened do not give a resistance value for any particular inlet valve.
Step-by-step: test the inlet valve coil
Step 1: Unplug the washer and shut off the water
Remove the plug from the outlet. Close the hot and cold water supply valves at the wall and disconnect the hoses if you need better access. Place a towel under the valve area to catch any remaining water.
Step 2: Locate the valve
The inlet valve is usually mounted at the back or top of the washer, where the fill hoses connect. The number of valves and their layout differ by brand and model. Use the service manual or wiring diagram for your model to identify each coil and its connector.
Step 3: Disconnect the electrical connector
Take a photo of the connector and the terminal pin positions before you unplug it. Pull the connector straight off the valve. Keep the wires and the connector in the same orientation so the reassembly is correct.
Step 4: Set the meter
Plug the black lead into COM and the red lead into the VΩ jack. Turn the dial to the ohms or continuity setting. Fluke notes that continuity mode is often combined with the resistance (Ω) function, and some meters need a button press to turn on the beeper. Confirm the display before you start.
Step 5: Measure across each coil terminal pair
Touch the probes to the two pins for each coil. Hold them steady for a second. A low reading or a beep means the coil path is complete. An OL reading or silence means the coil path is open. Test each coil the diagram shows, since some valves have more than one.
Step 6: Check the rest of the valve
If the coil is complete, check the valve’s inlet screen for debris and the hoses for kinks. A valve with a good coil can still fail to open if the screen is blocked or the water supply is closed. Look at the control signal next, using the model’s diagram and the control board.
Step 7: Reassemble
Reconnect the connector to the valve in the same orientation, reattach the hoses, open the water supply slowly, and check for leaks before you plug the washer back in.
Reading the result
- Complete path on every coil: The coil is not open. Check the water supply, the screen, and the control signal before you replace the valve.
- OL or silent on one coil: That coil is open. Confirm the connector and terminals are clean and tight, then consider replacing the valve.
- Complete path where the diagram says there should be none: Re-check the wiring. A short between terminals or a wrong connection can produce a false reading.
Why a good coil does not settle the problem
A washer that does not fill can have a good inlet valve and still have a problem with the water supply, the hoses, the pressure switch, the control board, or the wiring between them. The coil test checks only the electrical path through the valve.
Mistakes to avoid
- Testing with the plug in or the valve energized. Ohms and continuity modes are for dead circuits.
- Testing with the water on. Leaks can damage the washer and nearby wiring, and water near the connector is a shock risk.
- Assuming two valves are the same. Hot and cold valves can differ, so test each one against the diagram.
- Replacing the valve without checking the screen. A blocked screen can look like a bad valve.
When to call a technician or plumber
Call a licensed appliance technician if you cannot identify the coil terminals, if the connector is melted or discolored, or if the coil tests correctly and the washer still does not fill. Call a licensed plumber for work on the supply lines and fittings. Wiring at the outlet or the breaker belongs to a licensed electrician.
How we chose
This guide relies on three sources we opened on 2026-10-27: two Fluke pages on continuity testing and a 2008 CPSC recall notice about a shock hazard in gas dryer wiring. We chose the Fluke pages for their plain explanation of continuity and resistance measurement, and the CPSC notice as an official source on appliance electrical hazards. We did not use retail parts pages or forums for technical claims.
What we could not verify
- The coil resistance for any specific washer inlet valve. The sources we opened do not state one.
- The connector pinout, valve layout, and screen location for any brand or model.
- Whether a given valve failure is the reason a washer does not fill.
FAQ
Can I test an inlet valve with the washer plugged in?
No. Unplug the washer first. Fluke’s continuity guidance calls for a de-energized circuit.
What does an open coil mean?
An open coil has a break in its path, so the meter shows OL or stays silent. The coil cannot energize, which means the valve cannot open on that circuit.
What is the normal resistance for my valve?
The sources we opened do not give a figure for any washer inlet valve. Use the service data for your model.
Is a good coil enough to say the valve works?
No. The coil reading covers only the electrical path. The valve’s mechanical parts, screen, and water supply also need to be checked.
Should I replace the valve if the coil is open?
An open coil means the valve cannot energize, so replacement is the usual remedy. Confirm the connector and terminals are sound first, and match the replacement part to your model.
Is this a job I can do myself?
Testing the coil with the washer unplugged and the water off is a reasonable step for a careful owner using the model manual. Supply-line and wiring work goes to a licensed plumber or electrician.
Bottom line
Unplug the washer, shut off the water, and check the valve coil with the meter in ohms or continuity mode. An open coil means the valve cannot energize. A good coil means you should check the water supply, the screen, and the control signal before you replace the valve.
For a broader look at the meter, see our guide to voltage testers for home use. Our non-contact voltage tester guide explains how those tools fit into a safe check before you open an appliance.
Sources
- Fluke, “A Guide to Continuity Testing with a Multimeter”: https://www.fluke.com/en-us/learn/blog/digital-multimeters/how-to-test-for-continuity (opened 2026-10-27)
- Fluke, “What is Continuity?”: https://www.fluke.com/en-us/learn/blog/electrical/what-is-continuity (opened 2026-10-27)
- U.S. Consumer Product Safety Commission, “General Electric Recalls Gas Dryers Due to Shock Hazard” (February 11, 2008): https://www.cpsc.gov/Recalls/2008/general-electric-recalls-gas-dryers-due-to-shock-hazard (opened 2026-10-27)
