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LG Dishwasher Error Code IE

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 10, 2026
⚠ Medium Severity 🔧 Easy DIY

Water inlet error — not filling with water

The most common cause of the IE error on a LG dishwasher is water supply valve under sink closed (~45% of cases); start with: check the supply valve.

💰 DIY cost: $0–$70 👨‍🔧 Pro cost: $120–$230 Save $120+ by doing it yourself
LG Dishwasher error code IE on the display panel
How the IE code appears on a LG dishwasher display

What Does Error Code IE Mean on a LG Dishwasher?

Water inlet error — not filling with water.

The IE code fires when the control board detects that the tub has not reached the expected water level within the allotted fill time. A flow sensor or pressure/level switch monitors incoming water; if fill is too slow or absent, the cycle halts to protect the pump. This is distinct from an overfill or drain fault — IE points specifically to inadequate supply reaching the tub, whether from a closed valve, kinked hose, clogged inlet screen, or a failed inlet valve solenoid.

Models affected: LG dishwashers across most recent generations, including models such as LDFN4542S, LDTS5552S, and LDF5545ST
What owners report: Owners commonly report IE showing up early in a cycle, often after the water was recently shut off for plumbing work and not fully reopened. A frequent quick win is simply confirming the under-sink supply valve is all the way open and straightening a hose kinked behind the unit; low household water pressure can also trigger it falsely.

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. 1
    Water supply valve under sink closed 45% of cases
  2. 2
    Inlet hose kinked 30% of cases
  3. 3
    Inlet screen blocked with sediment 15% of cases
  4. 4
    Water inlet valve failed 10% of cases

How to Fix LG Dishwasher Error Code IE

🔧 Easy DIY Est. time: 10–20 min
⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.
  1. 1

    Check the supply valve

    Under the sink, confirm the dishwasher supply valve is fully open.

  2. 2

    Check for kinks

    Trace the supply hose from valve to dishwasher for kinks.

  3. 3

    Clean the inlet screen

    Disconnect the hose at the dishwasher inlet port and clean the mesh filter.

  4. 4

    Replace inlet valve

    If supply is confirmed good but no fill, replace the inlet valve.

    🔩 LG dishwasher inlet valve ($30–$70)

How to Reset Error Code IE

Restore water supply and restart the cycle.

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

Full LG dishwasher reset guide → Enter diagnostic mode →

Did this guide fix your appliance?

When to Call a Professional

If supply is confirmed and still no fill, the inlet valve solenoid has failed.

Average professional repair cost for this issue: $120–$230

Same Code on Other Brands

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

GE Appliances logo
GE Appliances Dishwasher IE
Water inlet error — inlet valve not operating correctly
Kenmore logo
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 Dishwasher:

🔩
Search PartSelect
LG Dishwasher repair parts
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Search RepairClinic
Step-by-step video guides

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

More LG Dishwasher Error Codes

AE Leakage detected — water found in base tray OE Drain error — dishwasher not draining FE Water overflow — overfill protection triggered HE Heater failure — water not heating tE Temperature sensor failure LE Leakage detected — flood protection activated

Frequently Asked Questions

Can I keep using my LG Dishwasher 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 Dishwasher? +
Across reported LG dishwasher repairs, the most frequent is water supply valve under sink closed (45% of cases), inlet hose kinked (30%), then inlet screen blocked with sediment (15%). 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 the supply valve, then check for kinks — 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 Dishwasher error IE? +
A DIY repair typically runs $0–$70 in parts, versus $120–$230 for a professional service call, so handling it yourself saves around $120. Expect the work to take about 10–20 minutes.
Which LG Dishwasher models show error IE? +
IE is documented on LG dishwashers across most recent generations, including models such as LDFN4542S, LDTS5552S, and LDF5545ST. Other units sharing the same control platform can display it too, so the fixes here generally transfer across the series.

Sources & References

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

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