Top-Load Automatic Washing Machine: Water Not Entering

If your top-load washing machine’s display works but water does not enter, the problem may be the water supply, inlet valve, lid switch, water-level sensor, wiring, or PCB.

Start with the water supply and inlet valve before suspecting the PCB. Follow these steps in order.

Step 1: Check the water supply

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1. Open the water tap fully.
2. Check that the inlet hose is not bent, crushed, or blocked.
3. Turn off the tap and unplug the machine before disconnecting the hose.
4. Inspect the small mesh filter at the machine’s inlet and clean it gently if clogged.

If water pressure is weak or the filter is blocked, the machine may not fill correctly.

Step 2: Check the lid switch

• Close the lid properly.
• Select a normal wash program and press Start.
• Check whether a lid-lock indicator appears or an error code is displayed.

Some models will not open the inlet valve until the required lid or safety conditions are satisfied.

Step 3: Check the inlet valve

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The inlet valve is an electrically operated solenoid valve that opens when the control system commands water filling.

With the machine unplugged:

• Inspect its connector and wiring.
• Look for corrosion, loose terminals, or burnt marks.
• If you have a multimeter and know how to use it safely, test the disconnected valve coil and compare the reading with the correct service specification.

An open-circuit coil may indicate a defective valve. A normal resistance reading does not guarantee that the valve opens correctly.

Step 4: Check the water-level sensor

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The water-level sensor tells the PCB how much water is in the tub.

1. Unplug the machine.
2. Inspect the sensor connector and accessible pressure hose.
3. Look for a disconnected, kinked, or damaged hose.
4. Check for a sensor fault using the manufacturer’s test procedure.

A sensor that incorrectly reports a full tub may prevent further filling.

Do not blow into an electronic sensor or adjust its calibration screw unless the service manual specifically instructs you to do so.

Step 5: Check the PCB output

The PCB controls the inlet valve, but a working display does not prove that its valve-control circuit is healthy.

A qualified technician can test the valve circuit during a fill command using the model-specific service manual.

Test result	Possible conclusion
Correct rated voltage reaches the valve, but it does not open	Faulty valve, blocked water path, or poor connection
No voltage reaches the valve	Wiring fault, missing safety condition, sensor issue, or PCB output fault
Valve and wiring are good	Check sensor signals, interlocks, and PCB control logic
PCB has visible damage	Further testing is needed before deciding whether to repair or replace it

Never guess PCB pinouts or apply mains voltage directly to a sensor or valve. Live electrical testing should be performed only by a qualified technician.

Step 6: Select the next diagnostic test

1. What do you hear after pressing Start?

No sound from inlet valve

Valve hums but no water enters

Clicking sound but no water enters

2. Washing machine brand

Haier

Dawlance

Samsung

LG

Other

3. Display status

No error code

Error code displayed