LG washing machines are known for their advanced technology, efficiency, and smart diagnostic features. One of the most helpful features is the built-in error code system. When something goes wrong, your LG washer displays a specific code that helps identify the issue quickly. Understanding these codes can save you time, reduce repair costs, and help you decide whether you can fix the problem yourself or need professional service.

This comprehensive guide explains the most common LG washing machine error codes, their causes, and step-by-step troubleshooting tips to keep your appliance running smoothly.

Why LG Washing Machine Error Codes Matter

Modern LG washers use sensors and electronic controls to monitor performance. When the machine detects abnormal operation—such as drainage problems, imbalance, or motor issues—it stops the cycle and displays an error code.

Benefits of the error code system:

• Faster diagnosis
  
  

• Prevents further damage
  
  

• Improves safety
  
  

• Helps technicians repair efficiently
  
  

• Saves unnecessary part replacements
  
  

Instead of guessing what went wrong, the code gives you a strong starting point.

Most Common LG Washing Machine Error Codes

Below are the error codes most frequently seen in LG front-load and top-load washers.

OE Error – Drainage Problem

What it means:
The washer cannot drain water properly.

Common causes:

• Clogged drain filter
  
  

• Kinked or blocked drain hose
  
  

• Pump obstruction
  
  

• Faulty drain pump
  
  

How to fix:

1. Turn off and unplug the washer.
   
   

2. Clean the drain pump filter (usually behind the lower front panel).
   
   

3. Check the drain hose for bends or blockages.
   
   

4. Run a rinse and spin cycle to test.
   
   

When to call a technician:
If the pump makes loud noise or the error returns repeatedly.

UE Error – Unbalanced Load

What it means:
The washer detected an uneven load and cannot spin properly.

Common causes:

• Heavy items on one side
  
  

• Overloading
  
  

• Washing single bulky items
  
  

• Washer not level
  
  

How to fix:

• Redistribute clothes evenly.
  
  

• Remove excess items if overloaded.
  
  

• Wash bulky items with additional laundry.
  
  

• Check that the washer is level on the floor.
  
  

This is usually a simple user-fixable issue.

IE Error – Water Inlet Problem

What it means:
The washer is not filling with water within the expected time.

Common causes:

• Water supply turned off
  
  

• Kinked inlet hoses
  
  

• Clogged inlet filters
  
  

• Low water pressure
  
  

• Faulty water inlet valve
  
  

How to fix:

1. Ensure both hot and cold water taps are fully open.
   
   

2. Inspect hoses for bends.
   
   

3. Remove and clean inlet filter screens.
   
   

4. Verify household water pressure.
   
   

Call for service if:
Water valves are open but the washer still doesn’t fill.

DE Error – Door Not Locked

What it means:
The washer door is not properly closed or locked.

Common causes:

• Door not fully shut
  
  

• Obstruction in door seal
  
  

• Faulty door latch
  
  

• Wiring issue
  
  

How to fix:

• Open and firmly close the door.
  
  

• Check for clothing stuck in the seal.
  
  

• Inspect latch for visible damage.
  
  

If the error persists, the door lock assembly may need replacement.

LE Error – Motor Locked

What it means:
The motor is overloaded or not functioning correctly.

Common causes:

• Overloaded drum
  
  

• Heavy bedding items
  
  

• Motor wiring issue
  
  

• Stator or rotor problem
  
  

• Control board fault
  
  

How to fix:

1. Turn off the washer for 30 minutes to reset.
   
   

2. Remove some laundry if overloaded.
   
   

3. Restart the cycle.
   
   

Professional repair is often required if the error continues.

FE Error – Overflow Detected

What it means:
Too much water has entered the washer.

Common causes:

• Faulty water inlet valve stuck open
  
  

• Pressure sensor malfunction
  
  

• Control board issue
  
  

Immediate steps:

• Turn off water supply.
  
  

• Unplug the washer.
  
  

• Drain excess water.
  
  

This usually requires technician service.

PE Error – Pressure Sensor Problem

What it means:
The water level sensor is malfunctioning.

Common causes:

• Faulty pressure switch
  
  

• Loose wiring
  
  

• Control board issue
  
  

What to do:

• Power cycle the washer.
  
  

• If the code returns, professional repair is recommended.
  
  

CL Error – Child Lock Activated

What it means:
This is not a fault—Child Lock is enabled.

How to fix:

• Press and hold the Child Lock button combination (varies by model) for about 3 seconds.
  
  

TC Error – Thermistor Problem

What it means:
The temperature sensor is malfunctioning.

Common causes:

• Faulty thermistor
  
  

• Wiring damage
  
  

• Control board issue
  
  

Professional diagnosis is typically needed.

Sud or SUDS Error – Excess Detergent

What it means:
Too much foam is detected in the drum.

Common causes:

• Using non-HE detergent
  
  

• Overdosing detergent
  
  

• Poor water drainage
  
  

How to fix:

• Allow the washer to pause and clear suds.
  
  

• Use only HE (High Efficiency) detergent.
  
  

• Reduce detergent amount.
  
  

Step-by-Step General Troubleshooting

Before calling for service, try these universal steps:

1. Power Reset

Many temporary errors clear after a reset.

Steps:

• Unplug washer
  
  

• Wait 5 minutes
  
  

• Plug back in
  
  

• Restart cycle
  
  

2. Check Installation

Improper setup causes many errors.

Ensure:

• Washer is level
  
  

• Hoses are not kinked
  
  

• Drain height is correct
  
  

• Power supply is stable
  
  

3. Inspect Filters and Hoses

Blocked filters are a very common issue.

Regularly clean:

• Drain pump filter
  
  

• Inlet mesh filters
  
  

• Drain hose
  
  

4. Avoid Overloading

Overloading stresses the motor and suspension.

Best practice:

• Fill drum loosely
  
  

• Leave space at top
  
  

• Mix large and small items
  
  

5. Use Proper Detergent

Always use HE detergent in the correct amount. Excess soap causes suds errors and poor rinsing.

Preventive Maintenance Tips

Keeping your LG washer maintained reduces error codes significantly.

Monthly:

• Clean the drum (use Tub Clean cycle)
  
  

• Wipe door gasket
  
  

• Check detergent drawer
  
  

Every 3–6 months:

• Clean drain pump filter
  
  

• Inspect hoses
  
  

• Check leveling
  
  

Annually:

• Deep clean inlet filters
  
  

• Inspect door boot for mold
  
  

• Check water pressure
  
  

When to Call a Professional

While many issues are user-fixable, some require expert repair.

Call a technician if:

• Error returns repeatedly
  
  

• You hear grinding or burning smells
  
  

• Washer won’t power on
  
  

• Water is leaking internally
  
  

• Motor or control board errors appear
  
  

• Electrical components are involved
  
  

Professional service prevents further damage and ensures safe repair.

Understanding Smart Diagnosis (If Available)

Many newer LG washers include Smart Diagnosis.

How it helps:

• Transmits error data via smartphone
  
  

• Speeds up technician troubleshooting
  
  

• Reduces guesswork
  
  

• Improves repair accuracy
  
  

Check your model manual to use this feature.

Final Thoughts

LG washing machine error codes are designed to help—not confuse—you. By understanding what each code means, you can quickly identify problems, perform simple fixes, and know when professional repair is necessary. Many common issues, such as unbalanced loads or clogged filters, can be resolved at home in minutes.

However, for motor faults, sensor failures, or electrical problems, it’s best to rely on qualified technicians to ensure safe and lasting repairs. With proper maintenance, correct detergent use, and timely troubleshooting, your LG washing machine can deliver reliable performance for many years.

Keeping this guide handy will help you respond confidently the next time your washer displays an error code.