What Does Error Code FE Mean?

Error FE on your LG Washing Machine means: The LG Washing Machine error code FE indicates a fill error, which means the washing machine is unable to fill with water. This can cause the machine to stop mid-cycle or not start at all. It's essential to resolve this issue to prevent further damage and maintain your machine's performance.

What You'll Need

🔧 Tools

Multimeter
Phillips
T20 Torx screwdriver

🛒 Parts

Water Level Sensor

How to Fix Error FE — Step by Step

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Step 1: Reset the Washing Machine

Begin by resetting the washing machine. Unplug the machine from the power outlet and wait for 30 seconds. Plug the machine back in and try running a test cycle. This may resolve the issue if it was caused by a temporary glitch.

💡 Pro Tip: Make sure to unplug the machine before attempting any repairs to avoid electrical shock.
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Step 2: Check the Water Level Sensor

The water level sensor is responsible for detecting the water level in the machine. If the sensor is faulty, it can cause the fill error. Locate the water level sensor, which is usually located near the water inlet valve. Use a multimeter to check the sensor's resistance. The resistance should be around 1-2 kΩ. If the reading is outside this range, the sensor may be faulty.

💡 Pro Tip: When using a multimeter, ensure the probes are securely attached to the sensor leads to get an accurate reading.
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Step 3: Check the Water Inlet Valve

The water inlet valve is responsible for controlling the water flow into the machine. If the valve is clogged or faulty, it can cause the fill error. Locate the water inlet valve, which is usually located near the water supply hoses. Use a multimeter to check the valve's resistance. The resistance should be around 10-20 Ω. If the reading is outside this range, the valve may be faulty.

💡 Pro Tip: When checking the valve's resistance, make sure the machine is unplugged and the water supply hoses are disconnected.
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Step 4: Check the Water Supply Hoses

The water supply hoses may be clogged or kinked, preventing the machine from filling with water. Inspect the hoses for any blockages or kinks. If you find any issues, replace the hoses with new ones.

💡 Pro Tip: When inspecting the hoses, make sure to check both the supply and drain hoses for any blockages or kinks.
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Step 5: Replace the Water Level Sensor (if necessary)

If the water level sensor is faulty, you may need to replace it. Purchase a new water level sensor and follow the manufacturer's instructions for installation.

💡 Pro Tip: When replacing the sensor, make sure to disconnect the power supply and water supply hoses before starting the repair.

When to Call a Professional

If you don't have the right tools or experience, or if the issue persists after trying the above steps, schedule a service call with an authorized repair technician. They can help you identify the root cause and provide a more accurate estimate for the repair.

Diagnostic Flowchart

Follow this visual guide to systematically diagnose Error FE:

Diagnostic Flowchart — FE

The FE Error: What’s Going On

The LG Washing Machine error code FE is a fill error, which means the machine is unable to fill with water. This can cause the machine to stop mid-cycle or not start at all. The fill error is usually caused by a faulty water level sensor, clogged or kinked water supply hoses, or a faulty water inlet valve. Learn more about LG Washing Machine error codes.

Why This Happens

Faulty water level sensor: The water level sensor is responsible for detecting the water level in the machine. If the sensor is faulty, it can cause the fill error. Check the water level sensor’s resistance using a multimeter. If the reading is outside the normal range (1-2 kΩ), the sensor may be faulty. Read more about LG Washing Machine water level sensors.
Clogged or kinked water supply hoses: The water supply hoses may be clogged or kinked, preventing the machine from filling with water. Inspect the hoses for any blockages or kinks. If you find any issues, replace the hoses with new ones. Check your LG Washing Machine’s water supply hoses.
Faulty water inlet valve: The water inlet valve is responsible for controlling the water flow into the machine. If the valve is faulty, it can cause the fill error. Check the valve’s resistance using a multimeter. If the reading is outside the normal range (10-20 Ω), the valve may be faulty. Learn more about LG Washing Machine water inlet valves.

What Else You Should Know

Make sure to check the user manual for specific instructions on troubleshooting and repairing the LG Washing Machine error code FE.
If you don’t have the right tools or experience, or if the issue persists after trying the above steps, schedule a service call with an authorized repair technician.
Preventive maintenance tips: Regularly check the water supply hoses for any blockages or kinks, and ensure the water level sensor is clean and free from debris.
Cost estimates: The cost of repairing the LG Washing Machine error code FE can vary depending on the root cause and the technician’s labor rates. On average, the cost can range from $100 to $300.
Warranty information: Check the user manual or contact LG’s customer support to see if your machine is still under warranty.

What Does LG Washing Machine Error Code FE Mean?

When your LG washer shows the FE error, it’s telling you that the machine can’t fill with water. The control board checks the water level sensor and, if it doesn’t get the expected signal, it stops the cycle and displays FE. In plain terms, the washer is “hungry” but can’t get water to the drum. This can happen right before a wash starts or while a cycle is in progress, causing the machine to shut down mid‑cycle or refuse to start at all.

The error matters because an incomplete fill can leave clothes damp, lead to mold growth, or even damage the motor if the drum spins with too little water. If you ignore it, the machine may develop more serious problems that cost more to fix later. Fixing the FE code restores the washer’s ability to fill correctly and keeps your laundry routine running smoothly.

Common Causes of Error FE

Clogged or kinked water supply hoses – If the hoses that bring water into the washer are twisted or have debris, the water pressure drops and the sensor can’t register a full fill.
Faulty water inlet valve – The valve opens to let water in; if it’s stuck closed or has a broken seal, no water reaches the drum.
Worn or damaged water level sensor – The sensor tells the control board how much water is inside. A broken sensor or a loose connection will give a false low‑level reading.
Airlock in the inlet line – Air trapped in the hose can prevent water from flowing, confusing the sensor.
Electrical issues – Loose wiring or a bad relay can interrupt the signal between the sensor and the control board.
High water pressure – In some homes, too much pressure can cause the sensor to misread the level or damage the inlet valve.

How to Prevent Error FE

Inspect hoses every 6–12 months – Look for cracks, bulges, or kinks. Replace any hose that looks worn.
Keep the inlet valves clean – Remove debris from the valve spouts before plugging the machine back in. A small brush can help.
Secure all wiring connections – Make sure the sensor’s connector is snug and free of corrosion. If you notice any frayed wires, replace them.
Use a water pressure regulator – If your home has high pressure, installing a regulator can protect the washer’s components.
Schedule a yearly service check – A professional can test the sensor and valve for you, catching problems before they trigger FE.

How Much Should You Pay?

Repair Option	Parts Cost	Labor Cost	Total
DIY replacement of water level sensor (LG 5B9‑2G6B1)	$30–$50	$0	$30–$50
DIY replacement of water inlet valve	$25–$40	$0	$25–$40
Professional service call (includes diagnosis)	$30–$60	$120–$180	$150–$240
Full replacement of washer (if parts fail)	$1,200–$2,000	$200–$300	$1,400–$2,300

Prices vary by region and model. Labor rates are averages for a licensed technician.

Frequently Asked Questions

Q1: Can I use a different water level sensor if my part number is unavailable?
A1: Only use a sensor that matches your model’s specifications. LG’s 5B9‑2G6B1 is designed for most front‑load washers, but check the manual for your exact model before purchasing a replacement.

Q2: How long does it take to replace the sensor?
A2: A skilled DIYer can finish the job in about 30–45 minutes. A technician will typically need 1–1.5 hours, including diagnosis and testing.

Q3: Will a clogged hose cause the washer to show other errors?
A3: Yes. A clogged hose can trigger FE, but if the pressure drop is severe it may also cause a 0A or 0B error, indicating a water inlet problem.

Q4: Is the FE error permanent if I ignore it?
A4: No, but ignoring it can lead to longer cycles, wasted water, and potential damage to the motor or drum. Fixing it promptly keeps the machine running efficiently.

Q5: How can I tell if the water level sensor is the real culprit?
A5: After resetting the washer, run a short cycle. If FE appears again and the sensor’s connector is loose or the sensor’s LED (if present) is off, the sensor is likely at fault. A multimeter can test the sensor’s resistance to confirm.

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