LG WM3988H series, User'S Manual & Installation Instructions

I M P O RTA N T   S A F E T Y   I N S T RU C T I O N S

Congratulations on your purchase 

and welcome to the LG family.  

Your new LG Steam Washer™  

combines the most advanced  

washing technology with simple  

operation and high efficiency.  

By following the operating and care 

instructions in this manual, your 

washer will provide you with many 

years of reliable service. 

THANK YOU!

I N T RO D U C T I O N

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WARNING 

For your safety, the information in this manual must be  

followed to minimize the risk of fire or explosion, electric shock, or to prevent  

property damage, personal injury, or loss of life.

Your Safety and the safety of others is very important.

We have provided many important safety messages in this manual and on your appliance. Always read 

and obey all safety messages.

This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.

All safety messages will follow the safety alert symbol and either the word DANGER or WARNING.
These words mean:

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DANGER:

You can be killed or seriously injured if you don’t immediately follow instructions.

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WARNING:

 You can be killed or seriously injured if you don’t follow instructions.

All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of 

injury, and tell you what can happen if the instructions are not followed. 

INSTALLATION INSTRUCTIONS

Choose the Proper Location .................................. 9 
Clearances ............................................................. 9 
Flooring ................................................................ 10
Installations With Optional Pedestal Base 
or Stacking kit ...................................................... 10 
Unpacking and Removing Shipping Bolts ........... 11
Connecting the Water Lines ................................. 12
Connecting the Drain Line .................................... 13
Leveling the Washer ............................................. 14

HOW TO USE

Sorting Wash Loads .............................................  15 
Selecting Detergent .............................................. 16 
About the Dispenser ............................................. 16 
Loading the Dispenser ......................................... 17
Control Panel Features ......................................... 18
Cycle Guide .......................................................... 19
The LCD Display ................................................... 20 
Operating the Washer .......................................... 21
Steam Cycles ....................................................... 22
Cycle Setting Buttons ....................................  23–25
Cycle Option Buttons  ....................................  25-26
Special Functions ...........................................  26-27

PARTS AND FEATURES

Special Features ..................................................... 7 
Key Parts and Components ................................... 8

TROUBLESHOOTING

Normal Sounds You May Hear ............................. 31 
Before Calling for Service ...............................  31–33

CARE AND CLEANING

Regular Cleaning .................................................. 28
Cleaning the Washer ............................................ 29 
Maintenance ...................................................  29–30 

WARRANTY

 ................................................... 39 

Product Registration Information ......................... 39

SPECIFICATIONS/OPTIONAL ACCESSORIES

IMPORTANT SAFETY INSTRUCTIONS

Basic Safety Precautions  ..................................  3–6

Key Dimensions and Specifications ..................... 34 
Optional Accessories ........................................... 34 
Pedestal Installation .......................................  35–36 
Stacking Kit Installation ..................................  37–38

READ ALL INSTRUCTIONS BEFORE USE