LG WM3400CW - User Manual

Questions and Answers

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Robert TurnerJul 28, 2025
What to do if my LG WM3400CW Washer shows an IE INLET ERROR?
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  Tonya SullivanJul 28, 2025
  If your LG Washer displays an IE INLET ERROR, ensure the water supply faucets are fully open. Also, check that the water inlet hoses are not kinked, pinched, or crushed behind or under the washer. Be cautious when moving the washer during cleaning or maintenance. Clean the inlet filters as described in the MAINTENANCE section. Verify that your household water pressure is adequate by checking another faucet. If the flow is low, consider contacting a plumber to repair the water supply lines. Disconnect the water inlet hoses from the washer and run a few gallons of water through the hoses to flush out any dirt. Finally, avoid using leak-limiting hoses, as they can falsely trip and prevent the washer from filling.
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Michael ParrishAug 8, 2025
Why does my LG WM3400CW beep and then do nothing when I press a button?
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  Mr. Ronald GonzalezAug 8, 2025
  If your LG washer beeps but doesn't start when you press a button, the Control Lock feature may be activated. To deactivate it, power on the washer, then press and hold the button labeled 'Control Lock' (or the button directly above or below where 'Control Lock' is indicated) for approximately 3 seconds. This should disable the lock and allow you to operate the washer normally.
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Maureen WilliamsAug 17, 2025
How to stop loud banging noises from my LG WM3400CW when filling with water?
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  Natalie LunaAug 17, 2025
  The loud banging noises your LG washer makes while filling with water are likely due to a plumbing issue known as 'water hammer.' This can be resolved by installing a water hammer arrestor, which can be purchased at most hardware or home improvement stores.

Summary

Safety Instructions

Important Safety Instructions

Key safety precautions for safe operation and installation.

Grounding Instructions

Procedures and importance of proper grounding for electrical safety.

Installation

Product Specifications

Choosing the Proper Location

Guidelines for selecting a suitable and stable location for the washer.

Unpacking and Removing Shipping Bolts

Steps to remove shipping bolts and prepare the washer for operation.

Connecting the Water Lines

Instructions for connecting the hot and cold water supply hoses correctly.

Connecting the Drain Hose

Steps for properly connecting the drain hose to a standpipe or laundry tub.

Leveling the Washer

How to adjust the leveling feet to ensure the washer is stable and balanced.

Connecting to the Power Supply

Guidance on safely connecting the washer to a power source.

Testing the Washer

Operation

Using the Washer

Sorting Laundry

Loading the Washer

Adding Cleaning Products

Detergent Use

Control Panel

Explanation of the washing machine's control panel features and buttons.

Wash Cycles

Cycle Guide

Maintenance

Cleaning the Drum

Cleaning the Water Inlet Filters

Cleaning the Drain Pump Filter

How to clean the drain pump filter to prevent clogging and ensure proper drainage.

Care in Cold Climates

Troubleshooting

FAQs: Frequently Asked Questions

Before Calling for Service

Operation Problems

Error Codes

Explanation of error codes displayed on the washer and their meanings.

LG WM3400CW Specifications

General

Style	Front-Loading
Color	White
Washer Capacity	4.5 cu ft
Dryer Capactity	-
Max Spin Speed	1300 RPM
Spin Speeds	5
Spin Class	B
Number of Cycles	8
Cycle Selections	Quick Cycle
Wash	Fastwash 60'
Options	Auto Load Sensing
Hours	Drum Light
Noise level	-
Temperature Selections	5
Internal Heater	no
Control Panel	dial, touchpad
Delay Start / End	yes
Child Lock	yes
Cycle Signal	yes
Interior Light	no
Steam	no
Dispenser	single load
Energy Class	-
Annual Energy Consumption	100 kWh
Annual Water Consumption	-
Water Consumption Per Cycle	-
Voltage	120 V
Frequency	60 Hz
Current	10 A
Temperature Settings	5
Soil Levels	heavy, normal, light
Smart Home	no
Wi-Fi	nfc