LG Washing Machine Error Code IE

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 10, 2026

⚠ Medium Severity 🔧 Easy DIY Also shown as: 1E

Water inlet error — water not filling within expected time

The most common cause of the IE error on a LG washing machine is supply valve partially or completely closed (~40% of cases); start with: check supply valves.

💰 DIY cost: $0–$70 👨‍🔧 Pro cost: $120–$220 Save $120+ by doing it yourself

LG Washing Machine error code IE on the display panel — How the IE code appears on a LG washing machine display

What Does Error Code IE Mean on a LG Washing Machine?

Water inlet error — water not filling within expected time.

The control board monitors the flow meter and pressure sensor during the fill cycle. When it doesn't register enough water reaching the target level within the allotted fill time, it throws IE (displayed as 1E on some panels). This flags a supply-side or valve problem rather than drainage. It differs from FE, which fires when the tub overfills — IE means too little water, FE means too much, so the two point to opposite failures.

Models affected: LG front-load and top-load washers across most modern series, including models such as WM3900HWA, WM4000HBA, WM3400CW, WT7300CW, WM8100HVA, WM4500HBA, and WT7900HBA

What owners report: Owners commonly report IE right after moving the machine or reconnecting hoses, often because a supply valve wasn't fully reopened or a hose got kinked. A frequent quick win is simply opening both taps fully and clearing sediment from the inlet screens; the code usually clears on the next fill attempt.

What Causes Error Code IE?

Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:

1

Supply valve partially or completely closed 40% of cases
2

Inlet hose screens clogged with sediment 30% of cases
3

Low water pressure (below 20 psi) 20% of cases
4

Faulty water inlet valve 10% of cases

How to Fix LG Washing Machine Error Code IE

🔧 Easy DIY Est. time: 10–20 min

⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.

1

Check supply valves

Make sure both hot and cold valves behind the washer are fully open.
2

Clean inlet hose screens

Unscrew the inlet hoses from the back of the washer. Inside each port are small mesh screens — clean them under running water.
3

Test home water pressure

Run a nearby faucet while the washer tries to fill. If pressure is low throughout the home, the issue is the supply.
4

Test the water inlet valve

Using a multimeter, test each solenoid coil for continuity (should read 200–500 ohms). Replace if an open circuit is found.

🔩 LG water inlet valve ($30–$70)

How to Reset Error Code IE

After fixing the supply issue, the error clears automatically on the next fill attempt. Press Start/Pause to resume.

Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.

Full LG washer reset guide → Enter diagnostic mode → Symptom guide: Washer not filling →

Did this guide fix your appliance?

When to Call a Professional

If valves and screens are fine but the error persists, the water inlet valve needs replacement.

Average professional repair cost for this issue: $120–$220

Related Error Codes

Water overflow error — drum overfilling

⚠ High Severity

Same Code on Other Brands

Error code IE appears on these other brands too. See every brand that shows IE →

GE Appliances Dishwasher IE

Water inlet error — inlet valve not operating correctly

Kenmore Washing Machine IE

Water inlet error (LG-platform Kenmore models)

Find Replacement Parts

Use these links to find the exact replacement parts for your LG Washing Machine:

🔩

Search PartSelect

LG Washing Machine repair parts

🔧

Search RepairClinic

Step-by-step video guides

External links — ApplianceErrors.com is not affiliated with these retailers.

More LG Washing Machine Error Codes

OE Drainage error — water not draining within expected time UE Unbalanced load — cannot complete spin cycle LE Motor locked — hall sensor or stator fault dE Door open or door lock failure tCL Tub clean reminder — drum needs cleaning HE Heater error — water heater circuit fault

Frequently Asked Questions

Can I keep using my LG Washing Machine when error IE appears? +

You often can for a cycle or two, but the water-supply issue behind IE will keep interrupting normal operation until it is fixed. Plan the repair rather than ignoring the code.

What most commonly causes IE on a LG Washing Machine? +

Across reported LG washing machine repairs, the most frequent is supply valve partially or completely closed (40% of cases), inlet hose screens clogged with sediment (30%), then low water pressure (below 20 psi) (20%). Check them in that order before replacing any parts.

IE keeps coming back after a reset — what should I check next? +

A reset only clears the stored IE fault; if it returns, the water-supply problem is still present. Move on to the physical checks — check supply valves, then clean inlet hose screens — since the code will reappear until the root cause is resolved. This is a beginner-friendly job needing only basic hand tools.

How much does it cost to fix LG Washing Machine error IE? +

A DIY repair typically runs $0–$70 in parts, versus $120–$220 for a professional service call, so handling it yourself saves around $120. Expect the work to take about 10–20 minutes.

Which LG Washing Machine models show error IE? +

IE is documented on LG front-load and top-load washers across most modern series, including models such as WM3900HWA, WM4000HBA, WM3400CW, WT7300CW, WM8100HVA, WM4500HBA, and WT7900HBA. Other units sharing the same control platform can display it too, so the fixes here generally transfer across the series.

Sources & References

• LG Support — Help Library — official manufacturer documentation
• Our editorial & verification policy

Content verified against manufacturer service documentation. Last verified: June 10, 2026.

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