LG WM3700HWA/02 washer Parts

On the LG WM3700HWA washer, “HWA” is a model suffix LG uses to describe key features and finish: H indicates steam capability, W indicates a white finish, and A indicates pedestal compatibility. For model-specific feature details, use the WM3700HWA manual.

What each letter typically stands for

On LG front-load washers like the WM3700HWA, these letters are commonly used in the model name to quickly identify configuration:

• H: Steam feature included (steam cycles or steam options)
• W: White cabinet color
• A: Designed to work with an optional pedestal or pedestal washer

Why it matters

Knowing what “HWA” means helps you confirm you are shopping for the correct configuration (steam vs. non-steam, color, pedestal-ready) and helps avoid ordering the wrong parts or accessories for your washer.

Quick reference table

Suffix letter	What it indicates	What you might notice
H	Steam feature	Steam options on the control panel and steam-capable cycles
W	White finish	White cabinet/door styling
A	Pedestal compatible	Can be installed on an optional pedestal or pedestal washer

Related tip for parts and service

When ordering replacement parts for this washer, always match the full model number on the rating label (WM3700HWA) so the door lock, drain pump, inlet valve, and other components fit correctly.

Last updated: January 2026

The LG WM3700HWA washer has a 4.5 cu. ft. capacity. For cycle details and loading guidance specific to this model, we recommend checking the WM3700HWA manual.

What “4.5 cu. ft.” means for real-world loads

Capacity is the tub volume, not a guaranteed “pounds of laundry” number. In practice, you will get the best cleaning and spin performance when you load loosely and avoid packing items down.

• Load items loosely so they can tumble and rinse well
• Keep bulky items (comforters, heavy blankets) to one item at a time when possible
• Mix large and small items to help balance the load
• The door should close easily without forcing it
• Use HE detergent; too much detergent can cause oversudsing and poor rinsing

Quick load guidance (front-load washer)

Load type	What to do	Why
Everyday mixed laundry	Fill the drum loosely, do not compress	Better wash action and rinsing
Bulky bedding	Wash one bulky item (or a matched set)	Helps prevent out-of-balance spin
Small single item	Add 1–2 similar items	Reduces vibration and imbalance

Why it matters

Using the right load size for the 4.5 cu. ft. drum helps prevent out-of-balance spinning, reduces wear on suspension components, and improves cleaning results while keeping water and energy use efficient.

Last updated: January 2026

Yes, in many cases you can fix an OE (drain) error on your LG WM3700HWA by safely draining the washer, cleaning the drain pump filter, and checking the drain hose for kinks or clogs. The key is to expect water to come out and work slowly to avoid a mess; see the steps in the WM3700HWA manual.

What OE means on this LG washer

OE typically points to a draining problem: the washer cannot pump water out fast enough. The most common DIY fix is cleaning the drain pump filter behind the small access door at the lower front of the cabinet.

DIY steps to clear an OE error

Before you start, unplug the washer.

• Put towels down and use a shallow pan; draining can release up to about a gallon of water.
• Open the lower front access panel (drain pump filter cover).
• Pull out the small drain tube, remove the plug, and drain all water completely.
• Twist the pump filter counterclockwise, remove it, and clean out lint, coins, and debris.
• Check the filter housing for obstructions, reinstall the filter snugly, then recap the drain tube.
• Inspect the drain hose behind the washer for kinks, crushing, or a clog.

If the OE returns after cleaning, the drain pump itself may be weak or jammed; in that case, replacing the washer drain pump AHA75853804 is a common next step.

Quick checks that prevent repeat OE errors

• Use HE detergent and avoid over-dosing; excess suds can slow draining.
• Empty pockets to keep coins, pins, and small items out of the pump.
• Make sure the drain hose is installed at the correct height and not sealed airtight at the standpipe.

What to do based on what you find

What you see	Likely cause	What we recommend
Filter packed with lint/coins	Clogged drain pump filter	Clean filter and retry
Hose kinked/pinched	Restricted drain path	Reposition hose
Filter clean but still OE	Pump issue or internal restriction	Consider drain pump replacement

Why it matters

Clearing an OE error quickly helps prevent standing water, odors, and repeated cycle interruptions, and it reduces strain on the drain pump and control system.

Last updated: January 2026