LG Washer FE: The Tub Is Receiving Too Much Water

FE means the water level in the tub exceeded the maximum programmed fill for the current cycle. The board commanded the inlet valves closed but the pressure switch still detects rising water. This is an overflow protection code — shut off the supply valves behind the washer immediately.

Immediate Action

Turn off both hot and cold supply valves behind the washer. A stuck-open inlet valve will continue admitting pressurized water regardless of the board's commands. Then unplug the washer. Check the floor around the base — if water has overflowed the tub and entered the base pan, AE may also appear.

Root Causes

Stuck-Open Inlet Valve (60%)

The washer has two solenoid-operated inlet valves (hot and cold). Each valve has a spring-loaded plunger. When the board cuts power to the solenoid coil, the spring pushes the plunger closed. Mineral deposits on the plunger seat prevent full sealing — water continues flowing at a reduced rate after the board commanded shutoff.

Test: With the washer unplugged but supply valves open, watch the inside of the tub. If water trickles in with no power applied, a valve is stuck open. Note whether hot or cold supply produces the trickle — that identifies which valve.

Pressure Switch Fault (25%)

The pressure switch (water level sensor) tells the board how full the tub is. A small rubber hose connects the tub air dome to the pressure switch at the top of the machine. The switch reads air pressure in this hose — higher water level = more pressure = different switch reading.

If the hose is disconnected, kinked, or cracked, the switch reads no pressure (thinks the tub is empty) and the board keeps filling. Water reaches the overflow level before any other protection triggers.

Test: Find the pressure hose (thin rubber tube from the tub's air dome to the pressure switch on the frame). Blow gently into the disconnected hose end — you should hear a click from the switch when pressure reaches the threshold. No click = switch failure. Air leaks from the hose = replace the hose.

Board Valve Output Stuck On (10%)

The board's valve relay or triac welded closed, keeping the valve energized permanently. The valve works correctly but never receives the off command.

Siphoning (5%)

If the drain hose is inserted too far into the standpipe (more than 6 inches), or the standpipe connection creates a vacuum, water can siphon from the drain back into the tub during fill. The board fills to the correct level, but siphoned water adds to it.

Inlet Valve Replacement

1. Unplug the washer. Close supply valves
2. Disconnect the hot and cold hoses from the valve assembly at the washer rear
3. Remove the rear panel or top panel to access the valve from inside
4. Disconnect the valve's electrical connectors (note which is hot, which is cold)
5. Disconnect the internal fill hoses from the valve outlets
6. Remove the mounting screws. Install the new valve assembly (5220FR2075L or model-specific, $20-40)
7. Reconnect everything. Open supply valves slowly and check for leaks before plugging in

Parts and Cost

FE vs. IE: Opposite Water Problems

FE means too much water (overfill). IE means not enough water (no fill or fill timeout). Both involve the inlet valve system but represent opposite failure modes. A valve stuck open causes FE. A valve stuck closed causes IE. The pressure switch can cause either code depending on the type of failure.

Preventing FE

Install a water hammer arrestor on each supply line ($15-20 each). Water hammer (pressure surges from other fixtures closing) can damage valve internals, accelerating the mineral deposit buildup that causes stuck valves. Sacramento area water at 13-17 grains hardness further accelerates valve degradation.

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LG washer overfilling? We carry replacement inlet valves and diagnose the pressure system same-visit — no flooding risk assessment skipped. Book overflow diagnosis.