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Error code reference

Electrolux Washer Error Code EF4

Water fill pressure too low, no signal from flow meter and solenoid valve is open

Electrolux codesElectrolux washer codes

Water fill pressure too low, no signal from flow meter and solenoid valve is open - tap closed or water pressure too low.

First step from the service manual

Check that tap is open; check water supply pressure.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What EF4 means on a Electrolux washer

The EF4 error code on an Electrolux washer indicates that the water fill pressure is too low, with no signal being received from the flow meter while the solenoid valve is in an open position. This means the machine has commanded the inlet valve to open and allow water to enter, but the flow meter is not detecting any movement of water through the system. The control board interprets this absence of flow signal as a pressure fault and triggers the EF4 code to halt operation and protect the machine.

The flow meter measures water entering the drum by detecting the movement of water through the inlet path and sending a pulse signal back to the control board. When the solenoid valve opens but no flow pulses are registered, the most likely explanation is that water is not physically reaching the valve. This points directly to the water supply side of the system: a closed or partially closed tap, kinked inlet hoses, or insufficient water pressure from the household supply.

Water pressure is a critical factor in triggering this fault. If the incoming supply pressure is too low, the solenoid valve may open but water volume will be insufficient to register a signal at the flow meter. This can happen during periods of high household water demand, a partially closed shutoff valve, or a supply line issue. Before investigating internal components, confirm that both hot and cold supply taps are fully open and that household water pressure is within an adequate range for normal washer operation.

Source: manufacturer service documentation.

Common causes of EF4

  1. 01

    Closed or partially closed water supply tap

    Wiring / connection

    If the hot or cold water tap behind the washer is turned off or only partially open, the solenoid valve cannot receive adequate flow. Fully open both taps and restart the cycle to see if the error clears.

  2. 02

    Low household water pressure

    Wiring / connection

    Insufficient incoming water pressure can prevent the flow meter from detecting any fill activity even when the solenoid valve is open. This may be a temporary condition during high-demand periods or a persistent supply line issue.

  3. 03

    Kinked or blocked inlet hose

    Wiring / connection

    A kinked, bent, or clogged inlet hose can restrict water flow enough to produce zero signal at the flow meter. Inspect both inlet hoses along their full length and check the mesh inlet screens for sediment buildup.

  4. 04

    Faulty or clogged water inlet solenoid valve

    Part replacement

    If the solenoid valve fails to open mechanically despite receiving the electrical command, no water will enter regardless of supply pressure. A clogged valve screen or a failed solenoid coil can both cause this condition.

  5. 05

    Defective flow meter

    Part replacement

    If the flow meter itself is faulty or its wiring connection is loose, it may not send a signal to the control board even when water is actively flowing. This is less common than supply-side issues but should be checked after ruling out pressure and valve problems.

See the test procedure for each cause

Frequently asked questions about EF4

What does EF4 mean on a Electrolux washer?
EF4 means the washer detected that water fill pressure is too low, with no signal coming from the flow meter even though the solenoid inlet valve is open. The machine is telling you it commanded a fill cycle but cannot confirm that water entered the drum. This is most commonly caused by a closed water supply tap or inadequate water pressure at the machine's inlet connection.
How do I fix an EF4 error on my Electrolux washer?
Start by confirming that both the hot and cold water supply taps behind the washer are fully open. Next, check the inlet hoses for kinks and inspect the mesh screens at the hose connections for sediment or debris. If the supply and hoses check out, verify that your household water pressure is sufficient. If the fault persists after addressing these points, the inlet solenoid valve or flow meter may need to be tested or replaced.
Is it safe to continue using the washer when EF4 is displayed?
You should not run a wash cycle while the EF4 error is active. The machine has halted operation because it cannot confirm water is entering the drum, and running a cycle without adequate water could damage the drum, motor, or heating element. Resolve the water supply issue before resuming use.
How much does it cost to repair an EF4 error on an Electrolux washer?
If the cause is simply a closed tap or a kinked hose, there is no repair cost involved. If the inlet hose screens need cleaning, that is also a no-cost fix. Replacing a faulty water inlet solenoid valve typically costs in the range of $40 to $120 for the part, with additional labor costs if a technician is needed. A defective flow meter replacement can range from $30 to $100 for the part depending on the model.
Will resetting the washer clear the EF4 error code?
Resetting the washer may temporarily clear the EF4 code from the display, but the error will return if the underlying cause has not been corrected. The control board will trigger EF4 again as soon as the machine attempts to fill and detects no flow meter signal. Fix the water supply issue first, then perform a reset or simply restart the cycle.

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