The LG IE error means the washer isn’t getting enough water—the tub doesn’t fill within the expected time. Check that water valves are fully open, clean the inlet filter screens, verify hoses aren’t kinked, and ensure water pressure is 14.5-116 psi. FloodSafe® burst-proof hoses can also cause this error.
| Error Code | IE |
|---|---|
| Meaning | Water supply inadequate—tub doesn't fill to proper level |
| Difficulty | Easy |
| Time to Fix | 15-30 minutes |
| Tools Needed | Adjustable pliers, Toothbrush, Towels |
| DIY Fixable | Yes |
| Official Source | LG Support |
The IE error code on LG washers indicates a water inlet problem—the washer is not receiving adequate water to fill the tub within the programmed time. This guide covers all common causes and solutions for both front load and top load models.
What Causes IE Error
The IE error triggers when the washer’s water level sensor detects that the tub hasn’t filled to the expected level within the allowed time. This can happen due to:
- Water supply valves not fully open
- Kinked or frozen water supply hoses
- Clogged inlet filter screens
- FloodSafe® hoses causing false shutoff
- Low household water pressure
- Failed water inlet valve
Step-by-Step Fix
Step 1: Check Water Supply Valves
The most common cause is simply valves that aren’t fully open.
- Pull the washer away from the wall to access the back
- Locate the hot and cold water valves (usually on the wall or floor behind the washer)
- Turn both valves fully counter-clockwise to ensure they’re completely open
- If valves are corroded or hard to turn, they may need replacement
Step 2: Inspect Water Supply Hoses
- Check both hoses from the wall to the washer for:
- Kinks or sharp bends — Straighten any kinks
- Crushing — Ensure washer isn’t pressing hoses against wall
- Visible damage — Cracks, bulges, or wear
- Replace damaged hoses immediately (risk of flooding)
Step 3: Clean Inlet Filter Screens
Sediment, rust, and debris can clog the small mesh screens inside the water inlet.
Cleaning procedure:
- Turn off both water supply valves completely
- Unplug the washer for safety
- Place towels under the connections (water will drain)
- Use adjustable pliers to disconnect hoses from the back of the washer
- Look inside the inlet ports on the washer—you’ll see small mesh screens
- Clean screens with a toothbrush under running water
- Also check screens at the other end of hoses (at wall valves)
- Reconnect hoses hand-tight, then 1/4 turn with pliers
- Turn on water valves, check for leaks
- Plug in washer and test
If your home has hard water or old pipes, check and clean inlet screens every 6 months. Heavy sediment buildup is a sign you may benefit from a whole-house water filter or water softener.
Step 4: Check for FloodSafe® Hoses
Important: LG washers are not compatible with FloodSafe® or similar auto-shutoff burst-proof hoses.
These hoses have internal valves that detect sudden pressure changes and shut off water flow. LG washers’ fill cycle can trigger these valves, causing false shutoffs and IE errors.
How to identify FloodSafe hoses:
- Label says “FloodSafe,” “Flood Chek,” “Auto-Shutoff,” or similar
- Hose has a larger connector with internal mechanism
- Hose came bundled with a flood protection device
Solution: Replace with standard braided stainless steel hoses without auto-shutoff valves.
Step 5: Verify Water Pressure
LG washers require water pressure between 14.5-116 psi (1-8 bar).
How to check:
- Turn on a nearby faucet
- Water should flow strongly and consistently
- If flow is weak at multiple fixtures, household pressure may be too low
Low pressure causes:
- Peak usage times (morning/evening)
- Multiple fixtures running simultaneously
- Municipal supply issues
- Pressure regulator problems
Solution for low pressure: Contact a plumber to assess and potentially install a pressure booster.
Step 6: Check for Frozen Lines (Cold Climates)
If the error occurs in winter:
- Check if hoses are cold to the touch
- Inspect hoses near exterior walls
- If frozen:
- Apply warm towels to hoses
- Use a hair dryer on LOW setting
- Never use open flame
- Consider insulating hoses if near cold areas
Model Coverage
This guide applies to all LG washers displaying IE error:
Front Load (WM series): WM3400CW, WM3600HWA, WM4000HBA, WM5500HVA, WM6700HBA and all similar models
Top Load (WT series): WT6100CW, WT7000CW, WT7150CW, WT8400CW and all similar models
When to Call a Tech
Contact LG support (1-800-243-0000) or a technician if:
- All DIY steps completed but IE persists
- Water valves are open but no water enters the machine
- You hear clicking/humming from inlet valves but no water flows (valves may have failed)
- Other appliances and faucets have normal water pressure
Likely diagnosis: Failed water inlet valve—requires professional replacement.
Typical repair cost: Water inlet valve replacement runs $150-250 including parts and labor.
Sources
For official LG support: